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Vehicle speed control method and device

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

Active Publication Date: 2020-11-13
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
  • 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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Abstract

A vehicle speed control method and a vehicle speed control device. The method comprises the following steps: monitoring traveling information of a vehicle during traveling of the vehicle; determining, according to the traveling information, whether the traveling environment is unfavorable for traveling of the vehicle; if yes, limiting the maximum rotation speed of the engine to a preset rotation speed, and limiting the maximum vehicle speed by limiting the maximum rotation speed; and if not, cancelling, if the maximum rotation speed of the engine is limited to the preset rotation speed, the limitation. The device comprises: a monitoring module used for monitoring traveling information of a vehicle during traveling of the vehicle; a determining module used for determining, according to the traveling information, whether the traveling environment is unfavorable for traveling of the vehicle; a speed limiting module used for limiting the maximum rotation speed of the engine to a preset rotation speed when it is determined that the traveling environment is unfavorable for traveling of the vehicle according to the obtained traveling information of the vehicle, and limiting the maximum vehicle speed by limiting the maximum rotation speed; and a canceling module used for canceling, when it is determined that the traveling environment is favorable for traveling of the vehicle according to the obtained traveling information of the vehicle, and the maximum rotation speed of the engine is limited to the preset rotation speed, the limitation. On the basis of different vehicle traveling environments, the method and device actively limits the maximum speed of a vehicle when the traveling environment is poor, and thus avoids potential safety hazards; moreover, the vehicle can be ensured to travel at a high speed when the traveling environment is good.

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 Patents(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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