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Electric vehicle electromotive air conditioner controller software refreshing system and method

A technology for electric air conditioners and electric vehicles, applied in software deployment, version control, program control devices, etc., can solve the problems of complex refresh process, high hardware requirements, and high cost, saving costs and manpower, simplifying the communication process, and the process is simple Effect

Inactive Publication Date: 2017-06-20
WUHAN UNIV OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the existing refresh method and system have high requirements for hardware. In addition to the upper computer and the target controller, additional refresh devices are required for process realization, including: diagnostic refresh unit and diagnostic refresh unit
Therefore, the refresh process is relatively complicated, inefficient, and costly

Method used

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  • Electric vehicle electromotive air conditioner controller software refreshing system and method
  • Electric vehicle electromotive air conditioner controller software refreshing system and method
  • Electric vehicle electromotive air conditioner controller software refreshing system and method

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Embodiment Construction

[0041] Such as figure 1The hardware structural block diagram of shown electric car electric air-conditioning controller software refreshing system, the present invention comprises the upper computer that upper computer Labview software is housed, USB-CAN card, the automobile air-conditioning controller that has stored Bootloader guide program, upper computer realizes will wait The updated application program is sent to the CAN bus, and the USB-CAN communication module is responsible for connecting the upper computer and the car air-conditioning controller to realize the physical support of CAN communication between the upper computer and the controller. The Bootloader guide program stored in the car air-conditioning controller in advance is in the In the download mode, the application program to be updated is received and stored in the memory, and the application program is loaded in the loading mode to complete the software update. Based on the CCP protocol, the communication...

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Abstract

The invention disclose an electric vehicle electromotive air conditioner controller software refreshing system and method. The method specifically comprises the steps of adopting a vehicle air conditioner software refreshing system upper computer developed by a Labview to send an application program to be updated to a CAN bus, making a Bootloader bootstrap program which is stored in a vehicle air conditioner controller beforehand receive the application program to be updated under a downloading mode and store the application program to be updated in a memory, and loading the application program in a loading mode to complete software updating. The program is updated through the CAN bus, the efficiency and maneuverability of system upgrade are improved, an existing CAN network resource on the vehicle can be directly utilized, and thus the cost and the labor are saved; an instruction of which part is related to the safety in a CCP protocol is given for reference, an extended instruction is customized aiming at a Bootloader principle to be used as a communication protocol at the same time, the safe mechanism of the CCP protocol is made full use of, and the communication process is simplified. Through self-developed mating upper computer software and the Bootloader bootstrap program, the whole set of the system is fast, convenient and simple to use.

Description

technical field [0001] The invention belongs to the field of electric vehicle controller development, in particular to an electric vehicle electric air conditioner controller software refreshing system. Background technique [0002] The compressor of a traditional car is directly driven by the engine. In an electric car, because the engine is cancelled, it is replaced by a motor drive. The software is more complicated, and defect repairs and version updates are often required. Therefore, in the stages of R&D, production, use and maintenance, there will be There is a need for software updates and upgrades. For most vehicle-mounted controllers with Freescale MCU as MCU, developers often use special tools such as P&E or BDM for program debugging and programming. Of course, serial communication interfaces can also be used. The traditional method is to use UART peripherals to implement Data transmission, however, there are a large number of on-board controllers and they are ofte...

Claims

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Application Information

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IPC IPC(8): G06F9/44G06F9/445
CPCG06F8/65G06F8/71G06F8/73
Inventor 肖合林万宏伟杨胜兵薛冰范文涛
Owner WUHAN UNIV OF TECH
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