Controller and control method of pure electric vehicle

A pure electric vehicle, vehicle controller technology, applied in electrical program control, comprehensive factory control, comprehensive factory control, etc., can solve the complex wiring, the reliability of the vehicle control strategy rate is not high, and the failure probability of the vehicle controller Increase and other problems to achieve the effect of reducing the probability of failure, reducing components, and improving reliability

Inactive Publication Date: 2011-04-20
SHANGHAI HAIMA AUTOMOBILE R&D +1
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AI Technical Summary

Problems solved by technology

[0007] However, due to the large number of components and the complicated wiring of the printed circuit board (PCB), the failure probability of the vehicle controller is also increased.
[0008] It can be seen that the hardware structure based on the existing vehicle control and the reliability of the vehicle control policy rate are not high.

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  • Controller and control method of pure electric vehicle
  • Controller and control method of pure electric vehicle
  • Controller and control method of pure electric vehicle

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Embodiment Construction

[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0068] image 3 It is a structural schematic diagram of the vehicle controller in the embodiment of the present invention. like image 3 As shown, the vehicle controller in the present embodiment includes: the CPU 10 realized by the embedded processor, various peripheral interface circuits of the CPU 10, and the CAN bus physical connection of each node in the pure electric vehicle through a shielded twisted pair. interface19.

[0069] Wherein, the embedded processor in the present embodiment selects the ARM microprocessor of 32 bits for use, and the calculation speed of this advanced reduced instruction set processor (Advanced Risc Machine, ARM) microprocessor is fast, and the operation up to 60MHz in the chip frequency. Moreover, the ARM microproce...

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Abstract

The invention discloses a controller and a control method of a pure electric vehicle. The controller is realized by using an embedded processor internally provided with an A / D (Analog / Digital) conversion function and a CAN (Controller Area Network) bus conversion function, therefore, an A / D conversion interface circuit in the controller is saved, the CAN bus conversion circuit is simplified, elements in the controller are further reduced, the circuit structure is simplified, the fault probability of the controller can be reduced, and the reliability of the controller is improved. Meanwhile, the invention realizes the control on all CAN bus nodes of the pure electric vehicle based on a CAN bus by using the interrupt service program of a CPU (Central Processing Unit).

Description

technical field [0001] The invention relates to a vehicle control technology, in particular to a vehicle controller for a pure electric vehicle and a vehicle control method for a pure electric vehicle. Background technique [0002] With the development and progress of the automobile industry, people have higher and higher requirements on the power, economy, safety and emission of automobiles, and the traditional mechanical connection and point-to-point connection control methods are far from meeting these requirements. need. [0003] In order to solve the above problems, a vehicle control method based on the Controller Area Network (CAN) bus came into being. In addition to CAN bus nodes such as instrument clusters, pure electric vehicles also add high-voltage and high-current CAN bus nodes such as battery management systems and motor controllers. Therefore, the safety and reliability of vehicle control is even more important. Batteries, motor controllers, electric air cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/023G05B19/418B60W10/08B60W10/18B60W10/20B60W10/26B60W40/10
CPCY02P90/02
Inventor 王佳杨建中邹宜才聂岁兵
Owner SHANGHAI HAIMA AUTOMOBILE R&D
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