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Vehicle speed control method and device

A technology for vehicle speed control and current vehicle speed, which is applied in control devices, control drives, electric vehicles, etc., can solve the problems of low safety and comfort, difficult speed, and difficult control, and achieve the effect of improving comfort and safety.

Active Publication Date: 2020-12-18
GREAT WALL MOTOR CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] However, in the process of controlling the vehicle speed by the above method, the brake signal and the accelerator signal are needed to increase or decrease the vehicle speed according to the driver's expectation, and the force and stroke of the driver's depressing the brake pedal or the accelerator pedal are usually It is difficult to control, and for different vehicles, the degree of increase or decrease in vehicle speed caused by the same force and stroke is also different. Therefore, it is difficult to accurately control the vehicle speed through the above methods, and the safety and comfort are low

Method used

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

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Embodiment Construction

[0050] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0051] Before explaining the embodiments of the present invention in detail, the application scenarios of the present invention are firstly introduced. refer to figure 1 , shows a schematic diagram of a vehicle speed control system provided by an embodiment of the present invention. The vehicle speed control system can be used in electric vehicles or hybrid vehicles, specifically including human-computer interaction module 01, data exchange module 02, ESP (Electronic Stability Program, electronic stability control system) 03, EMS (Engine Management System, engine management system) 04 , VCU (Vehicle Control Unit, vehicle controller) 05. Among them, the human-computer interaction module 01, ESP03, EMS04 and VCU05 are respectively connected with the data exchange module 02 to communicate.

[0052] The human...

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Abstract

A vehicle speed control method and device are provided. The vehicle speed control method comprises: taking a vehicle speed control signal, wherein the vehicle speed control signal is used to indicatethat the current vehicle speed is increased or decreased by a preset speed variable; acquiring driving environment information including a road slope, and controlling a drive motor and a brake disc according to the vehicle speed control signal and the driving environment information to control the current vehicle speed to increase or decrease the preset speed variable. The vehicle speed control method of the invention can improve the comfort and safety of the vehicle.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a vehicle speed control method and device. Background technique [0002] With the development of vehicle technology, the application of electric vehicles, hybrid vehicles and other vehicles is becoming more and more extensive. When a vehicle is running, especially on a road with poor road conditions such as a slope, it is usually necessary to control the speed of the vehicle for reasons such as the safety and comfort of the vehicle. [0003] In the prior art, the driver can usually turn on the HDC (Hill Descent Control, hill descent control) function when the vehicle is going downhill. When the HDC function is turned on, the vehicle obtains the instant vehicle speed as the target vehicle speed. During the subsequent driving process, the vehicle can maintain the current vehicle speed at the target vehicle speed by controlling the hydraulic torque of the hydraulic disc. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/08B60W10/18B60W30/18B60W40/06B60L15/28
CPCB60L15/28B60W10/08B60W10/18B60W30/18B60W40/06B60W2710/08B60W2710/18B60W2720/00B60W2552/15Y02T10/72
Inventor 张士亮刘甚宏孔凡茂孟祥禄王立波
Owner GREAT WALL MOTOR CO LTD
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