Vehicle speed signal processing system

A signal processing and signal processing device technology, applied to vehicle components, data exchange through path configuration, circuits or fluid pipelines, etc., can solve the problem that the vehicle speed signal cannot be obtained, so as to avoid the loss of the vehicle speed signal, simple structure and easy to use convenient effect

Active Publication Date: 2010-05-26
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Abstract
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Problems solved by technology

But there are some problems, mainly if the vehicle speed sensor fails, the vehicle speed signal will not be obtained, which will cause serious problems to the car control

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Embodiment Construction

[0016] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0017] Such as figure 1 As shown, the vehicle speed signal processing system includes a vehicle speed sensor, a wheel speed signal processing device, an engine controller EMS, a combination instrument ICU, a CAN bus and a gateway connected to the CAN bus. CAN bus includes CAN bus 1 and CAN bus 2, CAN bus 1 and CAN bus 2 are connected to the gateway, engine controller EMS is connected to CAN bus 1 through CAN line L1, and instrument cluster ICU is connected to CAN bus 2 through CAN line L2. The wheel speed signal processing device includes an anti-lock braking system ABS and a conversion unit, and the conversion unit is connected to the anti-lock braking system ABS and the CAN bus 1 through the CAN line L3 and the CAN line ...

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Abstract

The invention provides a vehicle speed signal processing system, which belongs to the technical field of vehicles and solves the problem that a vehicle speed cannot be acquired when a vehicle speed sensor of the conventional vehicle speed signal processing system is failed. The vehicle speed signal processing system comprises the vehicle speed sensor, an engine controller EMS and a combination instrument ICU, wherein the engine controller EMS and the combination instrument ICU can acquire a first vehicle speed signal and a second vehicle speed signal from the vehicle speed sensor respectively. The system also comprises a wheel speed signal processing device, a CAN bus and a gateway, wherein the wheel speed signal processing device can acquire a wheel speed signal and convert the wheel speed signal into a third vehicle speed signal; and the gateway can receive one or more of the first, second and third vehicle speed signals through the CAN bus and select one vehicle speed signal according to a selection mechanism of the gateway, wherein the selection mechanism refers to that the first vehicle speed signal is an optimal selection. The vehicle speed signal processing system has the advantage of acquiring the vehicle speed signals even when the vehicle speed sensor is failed.

Description

technical field [0001] The invention belongs to the technical field of automobiles and relates to a vehicle speed signal processing system. Background technique [0002] With the development of the economy and the improvement of people's living standards, automobiles have become one of the important means of transportation for people to travel. Vehicle control is a relatively complicated process, among which, the vehicle speed signal is a very important signal for vehicle control, and the loss of the vehicle speed signal will bring very serious problems to vehicle control. [0003] At present, the vehicle speed signal is basically realized by directly connecting the vehicle speed sensor to the engine controller EMS or the combination instrument ICU. But there are some problems, mainly if the vehicle speed sensor fails, the vehicle speed signal cannot be obtained, which will bring serious problems to the vehicle control. Contents of the invention [0004] The object of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/023H04L12/40
Inventor 李书福杨健赵福全丁武俊熊想涛陈文强由毅
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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