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Intelligent driving drive-by-wire chassis control system and control method for new energy commercial vehicle

A technology of intelligent driving and control systems, applied in vehicle components, circuits or fluid pipelines, transportation and packaging, etc., can solve problems such as poor adaptability, large safety hazards, complex structures, etc., and achieve improved overall performance and strong adaptability Effect

Inactive Publication Date: 2021-04-20
DAYUN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are problems such as high cost of restructuring, complex structure, large potential safety hazards, and poor adaptability. To provide a new energy commercial vehicle intelligent drive-by-wire chassis control system and control method

Method used

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  • Intelligent driving drive-by-wire chassis control system and control method for new energy commercial vehicle
  • Intelligent driving drive-by-wire chassis control system and control method for new energy commercial vehicle
  • Intelligent driving drive-by-wire chassis control system and control method for new energy commercial vehicle

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Experimental program
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specific Embodiment approach 2

[0050] Embodiment 2. This embodiment is the control method of the new energy commercial vehicle intelligent drive-by-wire chassis control system described in Embodiment 1. The method includes controlling the engine throttle, controlling the gear position of the gearbox, and controlling the brakes. System control, steering control and control of chassis electrical appliances;

[0051] The control of the engine throttle is based on the degree of openness of the motor control function, and the bus mode is used to directly control the motor throttle, and the control protocol follows SAEJ1939-71. The chassis controller directly forwards the throttle opening control command issued by the intelligent driving control system to the VCU.

[0052] For transmission gear control, the electronically controlled hydraulic automatic transmission used by the target vehicle, its electronic control unit supports dual shift mechanism controllers (main shifter and auxiliary shifter), and is in the ...

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Abstract

The invention discloses an intelligent driving drive-by-wire chassis control system and control method for a new energy commercial vehicle, relates to the field of new energy vehicle design, and solves the problem of control by simulating related actions of a driver in the prior art. In order to solve the problems of high modification cost, complex structure, large potential safety hazard, poor adaptability and the like in the prior art, an intelligent driving control module communicates with an EPS, an EPB, an SCU / TCU, a VCU, an IC, an EBS and a BCM through a CAN bus, and the CAN bus adopts a standard SPN protocol specified by SAEJ1939-71. The control method comprises the steps of controlling an engine accelerator, controlling gears of a gearbox, controlling a brake system, controlling steering and controlling a chassis electric appliance. According to the system, the system complexity is simplified, the system reliability is improved, and the precious installation space of a cab is saved. According to the invention, a lot of electromechanical system design work required by previous vehicle model modification is omitted, the intelligent driving system can be transplanted among different vehicle models only by changing part of communication protocols, and the adaptability is relatively high.

Description

technical field [0001] The invention relates to the field of new energy vehicle design, in particular to a control method for intelligent driving-by-wire chassis suitable for new energy commercial vehicles. Background technique [0002] With the continuous development of intelligent technology, intelligent driving technology has become a research hotspot in the automotive industry due to its broad application prospects. Most of the intelligent driving vehicles in China are modified from existing mass-produced vehicles, and most of their chassis adopt new energy models and automatic transmissions to adapt to the intelligent driving modification. At present, the control of the intelligent drive-by-wire chassis is mainly controlled by simulating the relevant actions of the driver. There are high restructuring costs, complex structure, and great potential safety hazards. Poor adaptability and other issues. [0003] With the rapid development of automotive electronics technolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/023
Inventor 武增王健许斌
Owner DAYUN AUTOMOBILE CO LTD
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