CAN (Controller Area Network) bus-based online debugging method of vehicle control unit

A vehicle controller and CAN bus technology, applied in electrical testing/monitoring and other directions, can solve problems such as direct connection for debugging, save space and cost, reduce the difficulty of hardware design, and reduce the difficulty of spatial arrangement of various components. small effect
CN102253672BActive Publication Date: 2013-04-03CHONGQING CHANGAN AUTOMOBILE CO LTD +1
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING CHANGAN AUTOMOBILE CO LTD
Publication Date
2013-04-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a method for debugging a vehicle control unit on the basis of a vehicle CAN (Controller Area Network) bus. A functional module capable of reading and modifying data through the CAN bus is added to the vehicle control unit software. When the vehicle control unit needs debugging, a CAN bus port on the vehicle control unit can be connected directly, a CAN signal receiving and transmitting tool such as CANalyzer or PCAN running on a computer can be used for transmitting and receiving data so as to read and write internal data of the control unit, thus the purpose of debugging the vehicle control unit is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a CAN protocol-based debugging method for reading and modifying internal data of a hybrid vehicle controller. Background technique

[0002] With the development of energy technology and automobile technology, hybrid electric vehicles have attracted more and more attention, and their control technology has become more and more advanced and complex. In the development process of the controller, the role of online debugging is becoming more and more important. Generally, it needs to be directly connected to the computer through the BDM interface of the controller during online debugging. However, due to the limitation of the cost of the controller and the location of the controller during online debugging, it is difficult to use BDM for debugging. It is difficult to simulate the vehicle environment for debugging. Therefore, it is necessary to design a method for online debugging of the controller in the vehicle environment throu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More