Electromobile power platform system with integrative control
An electric vehicle and power technology, applied in the field of management and control integrated electric vehicle power platform system, can solve problems such as breakdown, battery overcharge, affecting driving safety, etc., to improve driving safety, improve efficiency and reliability, and reduce costs. Effect
Inactive Publication Date: 2015-01-14
GUANGZHOU YIWEI ELECTROMOTION AUTOMOBILE CO LTD
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Problems solved by technology
[0004] (1) When the MOSFET is working at a high current, it is easy to be overheated and damaged, and cannot work stably for a long time at a high current; when the main circuit of the battery pack is turned off, the MOSFET is easily damaged due to a large surge impact due to high voltage and large current Motor controller and battery protection board; In order to ensure the load balance of MOSFETs when working at high currents, the battery protection board must be equipped with MOSFETs and a load balancing control module, which is complex in technology and high in cost
[0005] (2) There is no energy feedback charging protection, which may easily cause battery overcharging
[0006] (3) Lack of low-battery alarm, which may easily cause breakdown in the middle of driving and affect driving safety
Method used
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Embodiment 1
[0041] Example 1: Applied to light electric vehicle power platform system
[0042] The light-duty electric vehicle is designed to have a speed of 60km / h and uses a brushless DC motor with a rated power of 7.5W. The power battery pack uses 24 120AH lithium iron phosphate batteries in series with a rated voltage of 72V. According to the characteristics of the lithium iron phosphate battery, the battery high voltage protection voltage (charge protection and energy feedback protection voltage) is set to 3.8V, the low voltage protection voltage is set to 2.5V, and the low battery warning voltage is set to 2.8V.
[0043] Such as figure 1 Shown: The light electric vehicle power platform system includes the power battery pack 1, the battery protection board 2, the motor controller 3 and the motor 4. The motor 4 passes through the motor three-phase power line 5, the motor speed signal line 6, and the motor control signal line 7 respectively. Connected to the motor controller 3; the motor co...
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The invention discloses an electromobile power platform system with integrative control, which comprises a power battery pack, a battery guard plate, a motor controller and a motor, The motor is connected with the motor controller through a motor three-phase power line, a motor speed signal line and a motor control signal line; the motor controller is connected with a positive electrode and a negative electrode of the power battery pack; and the battery guard plate is connected with the motor controller through a low electric quantity alarming signal line, a low voltage protecting signal line and a high voltage protecting signal line for sending low electric quantity alarming signals, low voltage protecting signals and high voltage protecting switch signals to the motor controller. According to the electromobile, the motor controller provides charging protection and discharging protection for the power battery pack, so as to overcome the problem of damage on the battery guard plate and the motor controller by surge current formed due to the fact that the battery guard plate suddenly powers off to protect the power battery pack, the efficiency and the reliability of the system are improved and the cost is reduced.
Description
Technical field [0001] The invention relates to the field of traffic and automatic control, in particular to a management and control integrated electric vehicle power platform system. The electric vehicle power platform system of the present invention is suitable for electric vehicles driven by high-energy secondary batteries such as electric motors and lithium-ion batteries and nickel-hydrogen batteries from 24V to 96V, and mainly includes electric motorcycles, electric bicycles, electric scooter for the disabled, electric Recreational vehicles, golf carts, electric ATVs, light electric vehicles, AGV trolleys and other electric vehicles. Background technique [0002] In recent years, urban traffic problems have attracted increasing attention. Although automobiles, motorcycles, and scooters have gradually become popular in the world due to their convenient use, but with the availability of urban cars, motorcycles, and scooters for the disabled With the continuous increase in en...
Claims
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IPC IPC(8): B60L11/00B60L11/18B60L3/00
CPCY02T10/7011Y02T10/7055Y02T10/70
Inventor 查鸿山李慧琪周远山
Owner GUANGZHOU YIWEI ELECTROMOTION AUTOMOBILE CO LTD