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Vehicle speed limit system having active speed limit function and method

A function and vehicle technology, applied in the field of automotive electronic control, can solve the problems of low safety and low controllability, and achieve the effect of stable and reliable operation and low equipment cost

Inactive Publication Date: 2017-03-22
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the current vehicle speed has also reached a very high value. The ECU torque control limits the torque output or cuts off the fuel to limit the speed. Theoretically, it will be beneficial to safety, but there are still the following problems: 1. Low controllability and other problems ; 2. The problem of low security

Method used

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  • Vehicle speed limit system having active speed limit function and method
  • Vehicle speed limit system having active speed limit function and method
  • Vehicle speed limit system having active speed limit function and method

Examples

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Embodiment Construction

[0031] Such as Figure 4 As shown, the button of the vehicle speed limit system with active speed limit function outputs the button signal to the combination meter, the combination meter communicates with the ECU through the wiring harness, the combination meter and the ECU obtain the vehicle speed signal, the combination meter and the ECU can obtain the vehicle speed signal through the vehicle speed sensor, and the ECU Output the throttle driving signal to the electronic throttle, and the electronic throttle feeds back the throttle opening signal to the ECU.

[0032] The keys include the LIM key for starting the speed limit function, the SET+ key and SET- key for increasing and decreasing the speed limit value, and the OFF key for turning off the speed limit function. For the convenience of operation, the keys are set on the steering wheel. The combined instrument includes a speed limit adjustment numerical meter, a speed limit indicator light, a speed limit warning light and...

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Abstract

The present invention discloses a vehicle speed limit system having an active speed limit function. The system is provided with a key. The key outputs a key signal to a combination instrument, the combination instrument communicates with an ECU via a wire harness, and the combination instrument and the ECU acquire a vehicle speed signal. The vehicle speed limit system having the active speed limit function has the advantages that only a few key inputs need to be added, and the existing system sensor is used, the purpose is realized through optimizing the control target method, the equipment cost is low, the operation is stable and reliable, and the maximum limited speed can be adjusted according to the requirement.

Description

technical field [0001] The invention relates to the field of automotive electronic control. Background technique [0002] With the development of the automobile industry, automobiles are an indispensable means of transportation for family use, and users have put forward higher requirements for the use of automobiles. There are related regulations (ECE R89 regulations) that vehicles must have their own speed limiting device ASLD. ASLD refers to "Adjustable Speed ​​Limiting Device", that is, the driver can independently set the required speed limit through the adjustment button. When the driver sets the speed limit value for the vehicle, the vehicle speed is automatically limited within that value, and The speed limit function is realized by the control device operated directly by the driver. The function must be able to be started and stopped at any time [0003] The regulations stipulate that ASLF must meet the following requirements: [0004] ASLF shall not activate the...

Claims

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Application Information

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IPC IPC(8): B60K31/00B60K31/18
CPCB60K31/00B60K31/18
Inventor 杨德凤张伟
Owner CHERY AUTOMOBILE CO LTD
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