Automobile ABS/ASR/ACC integration system

Abstract

An ABS / ASR / ACC integrated system of car is composed of wheel speed sensor, secondary throttle opening sensor, sensor of distance between two cars, ABS pressure regulator, ASR pressure regulator, secondary throttle opening executor, normally closed and normally opened electromagnetic valves of ACC oil inlet, electronic controller, ABS and ASR indicators, and ACC warning lamp. The ABS control mode has the control priority.

Description

Technical field [0001] The invention relates to an automobile safe driving device, in particular to an active safe driving device of an automobile ABS / ASR / ACC integrated system. The automobile ABS (Anti-lock Braking System) device refers to the automobile brake anti-lock device, the automobile ASR (Automatic Slip Regulation) device refers to the automobile drive anti-skid device, and the automobile ACC device (Adaptive Cruise Control) refers to the vehicle speed adaptive control device. , Automotive ABS / ASR / ACC integrated system refers to the integrated system that the car has ABS, ASR and ACC functions at the same time and organically merges. Background technique [0002] At present, in the world, the technical status of safe driving devices based on automotive ABS / ASR / ACC integrated systems is zero. [0003] The published content of Yu Zhisheng's textbook Automobile Theory 3rd Edition published by the Machinery Industry Press in February 2003, and the contents published on page...

AI Technical Summary

Problems solved by technology

[0011] Public publication Electronic Science and Technology Herald. 1996 No. 8, page 30 to page 34 Liu Zhaodu and others wrote the development of electronic control technology of automobile braking system. However, it cannot solve the problem of directional stability when the car turns and the car maintains a safe distance between cars; when the car turns, the driver can only control the vehicle when the ground can provide sufficient steering force. Driving in the predetermined direction, if the lateral adhesion of the ground is relatively low and cannot provide enough steering force, the car will slide out sideways, which affects the ability of the car to drive in the predetermined direction; To solve the directional stability problem when the car is turning, according to the development idea of ​​the ABS / ASR device, a vehicle dynamics control system (Vehicle Dynamics Control, referred to as VDC, also known as Electronic Stability Program, referred to as ESP) was developed to form an ABS / ASR / VDC integrated system

This system organically combines the control devices of the main assembly of the car, such as braking, driving, suspension, steering, engine, etc., in terms of function and structure, so that the car has good performance when driving under some harsh conditions. : The application of the ABS / ASR / VDC integrated system removes the high requirements for the driver in terms of braking, acceleration and steering, and has a greater contribution to the active driving safety of the car. The disadvantages are: 1) The VDC system is not ABS / The natural development of the ASR device has poor versatility with the hardware and software of the ABS / ASR device; 2) Many new sensors and corresponding additional devices need to be added, which is expensive and accounts for a high proportion of the price of the entire vehicle, so it cannot be popularized Application; 3) Without combining the vehicle speed adaptive control system together, it cannot solve the problem of preventing rear-end collisions when driving on the expressway; so this integrated system has not been put on the market in batches since its birth 10 years ago

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