empevmobility
Empevmobility
EMP Tech Co., Ltd., was established in 2003, as a high-tech industry focusing on the electric vehicle automobile industry as its core business. The company is committed to the development, manufacture, sales, and service of electric drive systems, and cooperates with many automobile manufacturers to provide customers with high-quality products and efficient solutions in the field of automotive power supply. The main products are electric vehicle powertrain, power supply assembly, drive motor, motor controller, DC-DC converter, and other core components in the power field of the electric vehicles. With high efficiency, lightweight, low cost, and other significant advantages of products, and have cooperated well-known brand customers like Daimler, Continental, and Ford etc. We sincerely look forward to cooperating with more customers at home and abroad to create low-carbon, energy-saving, and environment-friendly travel and promote the development of the electric vehicle industry.
https://www.empevmobility.com/
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On-Board Charger Unit (OBC Unit)
An on-board charger unit (OBC) is a device used in electric vehicles (EVs) to convert alternating current (AC) power from the electrical grid into direct current (DC) power to recharge the vehicle's battery pack. The EV OBC is typically located within the vehicle and is integrated into the charging system. It is responsible for managing the charging process, including monitoring the battery state, regulating the charging voltage and current, and ensuring the safety and efficiency of the charging process.
Types of Electric Vehicle On-Board Charger Unit (OBC Unit)
3.3kw On-Board Chargers
EMP EV Mobility 3.3 kW on-board charger is a small, efficient, and reliable charger for electric vehicles. It is compatible with multiple types of new energy vehicles and provides fast charging and battery protection for users. Additionally, the high level of integration with other EMP EV Mobility products allows for simple and intelligent design of the entire vehicle system, providing a smarter and more environmentally friendly travel experience.
Electric Vehicle On-Board Charger Unit Introduction
The electric vehicle on board charger produced by EMP EV Mobility (one of the Chinese ev onboard charger manufacturers) is a high-efficiency and reliable charger designed specifically for electric vehicles. It utilizes advanced circuit design and efficient energy conversion technology, enabling fast and safe charging to improve charging efficiency and driving range. Additionally, the obc on board charger is equipped with multiple safety features, such as overload protection, over-temperature protection, and short-circuit protection, ensuring user safety and stability of the charging equipment. The EMP EV Mobility electric vehicle on board charger is a high-quality and high-performance obc on board charger, making it the ideal choice for electric vehicle users.
How On-Board Charger Unit Work in Electric Vehicles?
Electric cars typically use DC charging, so using an onboard charger on an electric car requires converting AC electricity to DC electricity. The onboard charger should be installed in the electric car's battery management system and connected to the battery. When the onboard charger is activated, it delivers DC energy to the car's battery and controls the charging and discharging process to ensure safety and efficiency. For a specific charging or discharging power, the required time depends on the size of the energy storage capacity.
Advantages of Electric Vehicle On-Board Charger Unit
EMP EV Mobility onboard chargers have the advantages of high efficiency, high power, and multiple safety guarantees. It can quickly charge electric vehicles and provide multiple protections during the charging process. Furthermore, the onboard charger can effectively reduce air pollution and carbon emissions, contributing to environmental protection. Finally, the on board charger in ev has intelligent features and can automatically adjust charging power according to vehicle status, road conditions, and other factors, thereby improving safety and efficiency.
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Motor Control Unit
Types of Motor Control Unit
Commercial Vehicle Motor Controller
Motor controller is the control unit that controls the motor to drive the whole vehicle, and belongs to the core components of electric vehicles. Motor controller has CAN communication function, over-current protection, overload protection, under-voltage protection, over-voltage protection, phase loss protection, energy feedback, power limit, high voltage interlock, fault reporting and other functions. The motor controller technology is relatively mature at present, it has the characteristics of high integration, high power density, long life, stable output, etc.
Components of Motor Control Units MCU
The electric motor control unit consists of an inverter and a controller. Among them, the inverter receives the DC power delivered by the battery and converts it into three-phase AC power to power the car motor. Next, the electric motor controller receives signals such as motor speed and feeds them back to the instrument. When braking or acceleration occurs, the frequency of the electric motor controller increases or decreases, thus achieving acceleration or deceleration.
Applications of Motor Control Units MCU
The role function of electric motor control unit:
(1) energy conversion function. Realize braking energy recovery to improve vehicle range;
(2) Torque execution function. The controller sends negative torque values to the motor controller to reduce energy waste;
(3) active discharge function. Large-capacity capacitor self-discharge for a long time will have high-voltage safety risks;
(4) safety protection function. Motor system with fault detection, fault reminding, fault handling and other safety protection functions;
(5) high-speed CAN network communication function. Effective realization of the electric motor control unit and the whole vehicle function strategy, control the safe and reliable operation of the motor system to ensure the safe operation of the vehicle.
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DC/DC Converter Unit
A DC/DC converter unit for electric vehicles is an electronic device that converts the voltage level of direct current (DC) power from one level to another. It is commonly used in various applications to provide a regulated power supply with different voltage requirements.
The DC/DC converter used in electric vehicle typically consists of input and output terminals, power semiconductor devices, and control circuitry. The input voltage is connected to the input terminals, while the output voltage is obtained from the output terminals.
Types of DC/DC Converter Units Used In Electric Vehicle
1.5KW DC/DC Converter Unit
Featured with built-in PCB board and tailored resistors.
DC/DC Converter In Electric Vehicle Impact
The impact of using of dc dc converter in electric vehicle on the automotive industry
1. With the growing energy crisis and environmental problems, electric drives have become the inevitable choice for the future development of the automotive industry.
2. With the development of power electronics and new material technology, in some cases, electric drive will be the mainstream of the future development of the automotive industry.
3. In terms of dc to dc converter in ev unit, AC asynchronous motor is one of the most important components, which plays a pivotal role in the automotive industry.
4. In the past 20 years, AC asynchronous motor has been greatly developed. Especially in recent years, AC asynchronous motor has been widely used in small cars, and due to its low price, simple structure, easy control and maintenance, it has become one of the main motor types in the field of small cars and hybrid vehicles.
The Advantages of DC/DC Converters In Electric Vehicle
DC/DC converters in electric vehicles have the following advantages:
1. Efficient management of power flow: With bidirectional high voltage DC/DC converter for electric vehicle, high voltages can be converted to low voltages, ensuring that each system is supplied with the proper amount of power.
2. Enhanced energy saving: Since DC to DC converter in ev can manage the power flow, they can effectively save energy.
3. Reduced failure rate: DC/DC converters for electric vehicles ensure that each system receives the proper power supply, thus reducing the failure rate of the system.
4. Improved overall efficiency: The efficiency of the entire EV system is also improved because the EV DC/DC converter provides efficient power management.
Therefore, DC/DC converters for electric vehicles are widely used in electric vehicles and are one of the key components for the efficient and safe operation of electric vehicles.
Applications of DC/DC Converters In Electric Vehicle
The high-voltage to high-voltage DC/DC converter used in electric vehicles is mainly used for boosting the high-voltage system to raise the voltage level of the power battery system again to match the higher-grade motor drive system.
At the same time, the high-voltage to high voltage DC/DC converter used in electric vehicle can also provide circuit isolation, voltage regulation, and other functions to ensure the safe and reliable operation of the high-voltage system.
In addition, in EV cars, high-voltage to high voltage DC/DC converters used in electric vehicle can also be used to direct output power to the vehicle's electronic devices or charging equipment to meet different power requirements.
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Commercial Vehicle Motor Controller
Technical features of the motor controller:
(1) use SVPWM modulation algorithm to improve the energy efficiency ratio of the power system;
(2) configure high-efficiency CAN communication module to control the normal operation of the system;
(3) have liquid temperature control system and excellent waterproof and moisture-proof performance to extend the use time of the product and the vehicle;
(4) adopt torque vector control mode to realize energy recovery and utilization;
(5) have perfect protection function to ensure the safe operation of the vehicle.
Specification of Commercial Vehicle Motor Controller
Product name
Main Drive Motor Controller
Applicable motor types
Permanent magnet synchronous motor & Three-phase asynchronous motor
Applicable models
logistics vehicle & medium-sized bus
Product model
V6-H-4D110G
V6-H-2D60G
Rated input voltage
DC 540V
DC 336V
Rated power
110kW
60kW
Input voltage ranges
DC 350-750V
DC 200-500V
Rated output current
210A
Maximum output current
350A
Output frequency ranges
0~800Hz
Water proof
IP67
Heat dissipation mode
water-cooling
Dimension
410*314*118mm, 336*314*118mm
Net weight
9.5kg, 8.5kg
Characteristics of Commercial Vehicle Motor Controller
Automotive motor controller features:
(1) High performance: the controller has a high overload capacity at low speeds (usually more than twice the rated current), and a wide weak magnetic constant machine capacity at high speeds.
(2) High torque: when the starting torque is large, the controller is required to output a larger current at low speed.
(3) Large speed: In the higher speed range, the drive system needs a larger constant power area, therefore, the controller is required to have a strong weak magnetic capability.
(4) High efficiency: The energy of new energy vehicles are valuable, and the efficiency of the drive system directly affects the range, so the high efficiency of the drive system is required to minimize the loss of the drive system.
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6.6kw On-Board Chargers
Product Features
Adopting APFC and intelligent software switch technology, with high efficiency and good reliability.
DC/DC part adopts novel LLC resonant adaptive full soft switch power conversion technology, improving the conversion efficiency of electrical energy.
Can work in the voltage range of 85Vac~264Vac, with a rated input voltage of 220Vac.
Charging mode adopts constant power, constant voltage, and constant current automatic conversion, effectively saving charging time and extending battery life.
Widely used in electric vehicles, electric buses, etc.
Specification of 6.6kw On-Board Chargers
Output power
6600W@220VAC
Effecificency
≥93% full -load
Input voltage range
AC 90V~264V
Output voltage
65V~140V
Frequency
45-65Hz
Water proof
IP67
Heat Dissipation
Air cooling
Power factor
≥0.98 more than half load
Net weight
8.5KG
Dimension
Standard Size
Characteristics of 6.6kw On-Board Chargers
The 6.6kW onboard charger is a high-performance charging equipment designed to provide fast charging services for electric vehicles. It is characterized by a compact structure, ease of use, and high efficiency and stability. It can quickly charge electric vehicles without damaging the battery during the charging process. In addition, it has the advantages of waterproof, durable, and safe and reliable operation, ensuring worry-free travel without concerns about electric vehicle's range. Enjoy the intelligent, convenient, and environmentally friendly travel!
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3.3kw On-Board Chargers
Product Features:
Adopts liquid-cooled seal waterproof and dust-proof structure, with lower temperature rise than natural cooling and high reliability of the whole machine.
Meets ISO26262 ASIL B safety level.
Full-function protection: input overvoltage undervoltage, output overvoltage undervoltage, output overcurrent, short-circuit, over-temperature protection, etc.
Small product volume, lightweight, and easy installation.
EMC complies with CISPR22, CISPR25, QC/T 895 requirements.
Optional network management and Autosar architecture.
Modular design to shorten the product development cycle.
Specification of 3.3kw On-Board Chargers
Output power
Max. 3300W
Effecificency
>94% @ 400V output, 50-100% load
Input voltage range
AC 90V~265V
Output voltage
200V-430V
Frequency
45-65Hz
Water proof
IP67
Heat Dissipation
Liquid-cooled
Power factor
>0.99 @ 360V out put, 50 -100% load
Net weight
5KG
Dimension
230*181*62mm
Characteristics of 3.3kw On-Board Chargers
The 3.3kW onboard charger is an efficient charger that features fast charging speed, compactness, and portability. It can be used for charging cars, electric vehicles, and other types of vehicles. Its power input voltage range is wide, making it suitable for various power grids. Additionally, the charger can be used for equipment with multiple output power requirements, demonstrating high flexibility and versatility.
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1.5KW DC/DC Converter Unit
1.5KW DC/DC Converter Unit
Product Features
Adopt advanced high-frequency switching control technology, effectively reducing the size of the product, with the characteristics of high power density.
Support 240 ~ 450Vdc wide range input, flexible to adapt to different models.
High safety electrical isolation of input and output.
Meet the requirements of automotive-grade electromagnetic compatibility.
With functions of over-under voltage protection, over-current protection, over-temperature protection and short-circuit protection, providing safe and reliable assurance.
Standard CAN 2.0B interface design, supporting standard UDS diagnostic development.
Strategy can be customized according to the needs of the whole vehicle, and all software can be upgraded online.
Specification of 1.5KW DC/DC Converter Unit
1.5KW DC-DC Converter
Output power
1.5KW
Efficiency
95%
Input voltage
200V DC-420V DC
Output voltage
12-14V DC
Working voltage range
6-18V
Water proof
IP67
Heat Dissipation
Air cooling/Water cooling/Self-cooling
Control method
CAN 2.0B
Net weight
5.65KG
Dimension
307.5*180*108mm
Characteristics of 1.5KW DC-DC Converter Unit
In the application of DC/DC converters for electric vehicles, the use of smart switching technology enables efficient operation at higher frequencies. By using smart switching technology, the maximum switching frequency of the EV DC/DC converter can be increased to 1.5 kHz, thus increasing the charging efficiency of the EV to more than 80%. At the same time, the loss and temperature rise of the EV DC/DC converter can be effectively reduced by using smart switching technology.
For the design requirements of the DC/DC converter of electric vehicles, power control technology can be used to realize the control of the heat generated during the operation of the DC/DC converter. The power control technique enables efficient operation at lower frequencies.
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EMP EV MOBILITY Electric Drive Unit
EMP EV MOBILITY is a leading provider of innovative solutions for electric vehicle parts such as the DCDC Converter unit, onboard charger unit, motor control unit, and CDU combo unit. With our advanced technology and development experience, we deliver high-quality electric car drive system parts that ensure optimal performance, reliability, and efficiency of electric vehicles. The DCDC Converter unit regulates the voltage flow while the onboard charger unit charges the battery from an external power source. The electric vehicle drive motors control unit optimizes the torque and speed of the electro drive motor, and our CDU manages power conversion and distribution efficiencies. Trust EMP for all your electric drive unit components needs.
Types of Electric Drive Unit
DC/DC Converter Unit
On-Board Charger Unit (OBC Unit)
Motor Control Unit
Conversion & Distribution Unit (CDU Combo Unit)
Products
DC/DC Converter Unit DC/DC Converter Unit
The DC/DC Converter Unit for electric vehicles features high-voltage output, fast response time, and can convert high voltage to low voltage output. This efficient system ensures reliable performance and reduces emissions, helping to optimize your EV's energy usage.
Why Choose EMP EV MOBILITY for Your Electric Vehicle Solution Needs？
Research and Development
EMP is committed to staying at the forefront of electric car drive system technology with 10 R&D facilities and 10+ years of engineering experts constantly exploring ways to innovate and improve.
Manufacturing Expertise
EMP has extensive ev drive systems manufacturing capabilities, equipped with automatic production and ERP system, material control, PCBA process, testing process, and final assembly.
IATF16949 Certification
EMP certified IATF16949+ VDA 6.3, strictly implement APQP, PPAP, rigorous testing to ensure that every electric car drive system product meets high industry standards.
Rapid Time-to-Market
EMP has deep expertise and experience in bringing new electric drive unit for a vehicle products and solutions to market quickly, which can be instrumental in helping your business stay ahead of the competition.
Impact of Electric Drive Units on the Automotive Industry
The Impact of Electric Drive Units for A Vehicle on the Automotive Industry:
Lower Emissions: With electric drive units for a vehicle, the automotive industry can decrease harmful emissions, making cars much more environmentally friendly.
Cost Savings: Electric vehicle owners can save money on fuel and maintenance costs, which is a significant reduction in operating expenses for both consumers and enterprises.
Increased Demand: Electric vehicles are becoming increasingly popular as consumers demand more eco-friendly options, resulting in a rise in demand for electric vehicle drive units in the automotive industry.
Job Creation: As the demand for electric vehicles increases, new job opportunities will arise in the manufacturing sector, design, and engineering, contributing to the growth of the industry.
Innovation Technology: Electric drive units are driving innovation in battery and motor technology, with manufacturers keen on developing longer-lasting batteries and electric vehicle drive motors that offer better performance and increased driving range.
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Electric Drive Unit in Passenger Vehicle Powertrain New Energy Passenger Vehicle Market Trends
The new energy vehicle industry is entering a phase of rapid development, and core technologies such as power batteries and motor control systems have been comprehensively improved, so that the range, charging time and safety of new energy vehicles have been greatly enhanced. However, with the rapid iterative development of new energy passenger cars, the requirements for the core technologies of electric motors, power batteries and electric control systems have become more and more stringent. In the development process of new energy vehicles, technological progress is an important factor to promote the development of the base.
Mainstream High-voltage Electronic Control Requirements For New Energy Passenger Vehicles
With profound insight into the market and forward-looking research, we adhere to the road of technological innovation, using our rich industrialization experience and technology iteration and upgrading capabilities to develop a number of basic solutions. And through integrated technology, we continuously improve the cost-performance advantage of the system.
1. A00-class passenger car solutions: cost-effective, miniaturization, and reduction of overall vehicle costs.
2. Mainstream passenger car solutions: single-phase charging, bi-directional (V2L, V2G) charging function.
3. Ultra-long range passenger cars: three-phase AC charging, meet high-power charging, and enhance charging experience.
New Energy Passenger Vehicle Powertrain Solutions
Two-in-one/three-in-one system integrated application, unidirectional/bi-directional, in line with the industry charging requirements, to meet the functional safety and other requirements, is the mainstream solution for new energy passenger car high-voltage electric control;
Two-in-one: DC/DC+OBC, OBC+high voltage junction box, DC/DC+high voltage junction box;
Three in one: DC/DC+OBC+high-voltage junction box.
Independent application solutions
DC/DC and OBC are applied independently, single-phase AC/three-phase AC, unidirectional/bi-directional 3.3kW, 6.6kW, 11kW, 22kW charging power.
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Electric Drive Unit in Electric Truck Powertrain New Energy Electric Truck Market Trends
According to the analysis of the applicable scenarios of heavy truck powertrain, pure electric trucks are relatively suitable for short-distance logistics, mining, factory and terminal transportation in the city. To further meet the multiple needs of the market and users, it gradually develops in the direction of multi-gear, high speed and low torque. New energy special vehicles have the characteristics of relatively fixed driving distance, driving mileage focusing on short and medium distance, convenient centralized charging, etc. As an automotive product supplier, we can provide innovative electrification products and technical solutions to meet the growing needs of the market.
Mainstream High-voltage Electronic Control Requirements For New Energy Electric Trucks
In terms of the current electric heavy truck drive assembly mode architecture, mainly coaxial single-motor central drive, electric drive bridge is also gradually developed, multiple routes go hand in hand. Considering the cost, efficiency, dynamics, technical complexity and other factors, the future based on multi-gear route, low torque, high speed dual-motor central drive and single-motor dual-axle will be the mainstream direction. We always take miniaturization and low cost as the development goal from the perspective of end users and OEMs, and at the same time do a good job of high conversion efficiency and lightweight, to reduce the cost of the whole vehicle for customers and improve the driving experience of users.
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Electric Drive Unit in Bus & Coach Powertrain New Energy Bus&Coach Market Trends
Nowadays, customer demand is the main guide for vehicle development, and the new energy bus market is entering a new normal of steady development. From the perspective of host plant costs and technology development routes, new energy buses are facing six major development trends: lightweight, customization, environmental protection, electrification, intelligence, and network connectivity. At present, the bus has higher requirements for the technical level of components and quality standards of the whole vehicle. Core component suppliers need to cooperate with the host plant to reduce the weight of the whole vehicle and lower the technical cost to improve the cost performance of the whole vehicle and help the steady development of new energy buses.
Mainstream High-voltage Electronic Control Requirements For New Energy Buses&Coaches
The electrification of the bus to promote the optimization of the core components of the vehicle configuration program, technological progress cost reduction to escort it, we have accumulated through their own rich experience in supporting and solid industrial base, to establish a new energy bus vehicle power basic solutions, modular, platform, high conversion efficiency, small size, light weight and other high quality standards, to improve the host factory's market competitiveness, improve the cost performance of the vehicle.
New Energy Bus&Coach Powertrain Solutions
Integrated Application Solutions
Two-in-one: DC/DC+OBC;
Three-in-one: DC/DC+OBC+high voltage junction box.
Stand-alone application solutions
DC/DC and OBC each for independent application, unidirectional/bi-directional 3kW, 6kW, 10kW power with 24V output.
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