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Vehicle speed control method and device

A technology of vehicle speed and control method, applied in the direction of control device, speed/acceleration control, vehicle accessories, etc., can solve the problems of driver safety hazards, traffic accidents, inability to drive vehicles at high speed, etc., and achieve the effect of avoiding safety hazards.

Active Publication Date: 2017-04-19
LAUNCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the driving environment is not good, if the drivers drive at a high speed, it is very easy to cause traffic accidents and bring potential safety hazards to the driver of the vehicle and other drivers. If the maximum speed of the vehicle is set at the factory, then Cannot make the vehicle run at high speed when the driving environment is good

Method used

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  • Vehicle speed control method and device
  • Vehicle speed control method and device

Examples

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no. 1 example

[0088] Please refer to Figure 4 , based on the first embodiment of the vehicle speed control device of the present invention, in the fifth embodiment of the vehicle speed control device of the present invention, the speed limiting module 30 includes:

[0089] A sending unit 31, configured to send a speed limit signal to the engine management system;

[0090] There are many ways to reduce the engine speed, such as passively reducing the intake air volume or exhaust volume, but in order to protect the engine, the engine management system or ECU (Electronic Control Unit: electronic control unit) is used to control the engine speed. The engine actively reduces the revs.

[0091] The deceleration unit 32, when the rotational speed of the engine is higher than the preset rotational speed, reduces the fuel injection quantity of the engine to reduce the rotational speed of the engine.

[0092] Specifically: the sending unit 31 sends a speed limit signal meeting the CAN protocol to ...

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PUM

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Abstract

The invention discloses a vehicle speed control method. The vehicle speed control method comprises the following steps of monitoring running information of a vehicle in the vehicle running process; judging whether the running environment is not beneficial for vehicle running or not according to the running information; and if the running environment is not beneficial for vehicle running, limiting the highest rotation speed of an engine to a preset rotation speed and limiting highest vehicle speed through limiting the highest rotation speed; and if the running environment is beneficial for vehicle running, canceling the limitation if the highest rotation speed of the engine has been limited to the preset rotation speed. The invention further discloses a vehicle speed control device. According to the invention, due to different vehicle running environments, the highest speed of the vehicle is actively limited while the running environment is poor so that potential safety hazards are avoided. Meanwhile, while the running environment is good, the vehicle can be ensured to run at a high speed.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a vehicle speed control method and device. Background technique [0002] At present, the car is in different driving environments, whether it is driving on a mountain road or in heavy rain, or driving on a clear highway: the maximum speed that the vehicle can reach is the same. However, when the driving environment is not good, if the drivers drive at a high speed, it is very easy to cause traffic accidents and bring potential safety hazards to the driver of the vehicle and other drivers. If the maximum speed of the vehicle is set at the factory, then The vehicle cannot be driven at high speed when the driving environment is good. Contents of the invention [0003] The main purpose of the present invention is to provide a vehicle speed control method, which aims to limit the maximum speed of the vehicle when the driving environment is bad, avoid potential safety hazards, and ensure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K31/00
CPCB60K31/00
Inventor 刘均宋朝忠欧阳张鹏
Owner LAUNCH TECH CO LTD
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