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Self-adaptive cruise control method and system suitable for pure electric bus

An adaptive cruise, pure electric bus technology, applied in electric vehicles, control devices, power management and other directions, can solve problems such as unable to meet actual needs, unable to adaptive cruise ahead target vehicles, low recognition accuracy, etc., to reduce procurement costs , Reduce the use of controllers, reduce the effect of wiring harness layout

Pending Publication Date: 2022-05-27
ZHONGTONG BUS HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventor found that the existing cruise control system for pure electric passenger cars is constant speed cruise, which cannot perform adaptive cruise according to the target vehicle in front; at the same time, the existing cruise control system only uses a single millimeter-wave radar to identify the target, and its The recognition accuracy is low and cannot meet the actual needs

Method used

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  • Self-adaptive cruise control method and system suitable for pure electric bus
  • Self-adaptive cruise control method and system suitable for pure electric bus

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The purpose of this embodiment is to provide an adaptive cruise control system suitable for a pure electric bus.

[0043] like figure 1 As shown, an adaptive cruise control system suitable for a pure electric bus includes a domain controller, a direction and vehicle speed control unit, an environmental sensor unit, a drive motor and a brake-by-wire unit connected to the domain controller;

[0044] The target information obtained by the environmental sensor unit and the driver action signal obtained based on the direction and speed control unit are processed by the domain controller to obtain the required torque under the current conditions; the domain controller will obtain the required torque under the current conditions. Send it to the drive motor or wire control system to realize the automatic acceleration and deceleration of the vehicle; realize the adaptive cruise control of the vehicle.

[0045] Further, the direction and vehicle speed control unit includes an ac...

Embodiment 2

[0071] The purpose of this embodiment is to provide an adaptive cruise control method suitable for a pure electric bus.

[0072] An adaptive cruise control method suitable for a pure electric bus, comprising:

[0073] Acquiring environmental information and driver action signals of the self-vehicle vehicle, wherein the environmental information includes the relative position, relative velocity, relative acceleration, and target type information of the self-vehicle vehicle to the front target;

[0074] Determine the target speed of the ego vehicle according to the driver's action signal;

[0075] Obtaining the required torque of the ego vehicle based on the environmental information and the ego vehicle target speed;

[0076] Realizing the state control of the own vehicle based on the demanded torque; wherein, the state control includes running at a constant speed, accelerating and decelerating;

[0077] Implement adaptive cruise control of the ego vehicle.

[0078] Further, ...

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Abstract

The invention provides a self-adaptive cruise control method and system suitable for a pure electric bus, and the method comprises the steps: obtaining the environment information of a self-vehicle and a driver motion signal, the environment information comprising the relative position, relative speed, relative acceleration and target type information from the self-vehicle to a front target; determining the target speed of the vehicle according to the driver action signal; on the basis of the environment information and the target vehicle speed of the vehicle, the required torque of the vehicle is obtained; state control of the vehicle is achieved based on the demand torque; wherein the state control comprises constant-speed driving, accelerated driving and decelerated driving; and the self-adaptive cruise control of the vehicle is realized.

Description

technical field [0001] The invention belongs to the technical field of automatic cruise of pure electric passenger cars, and in particular relates to an adaptive cruise control method and system suitable for pure electric passenger cars. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The inventor found that the existing cruise control system for pure electric buses is cruise control, which cannot perform adaptive cruise according to the target vehicle ahead; at the same time, the existing cruise control system only uses a single millimeter-wave radar to identify the target, which The recognition accuracy is low and cannot meet the actual needs. SUMMARY OF THE INVENTION [0004] In order to solve the above problems, the present invention provides an adaptive cruise control method and system suitable for pure electric passenger cars. , ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/14
CPCB60W30/143B60W2554/80B60W2554/804B60W2520/10Y02T10/72
Inventor 陈振国范志先朱岩朋侯进森刘洪民
Owner ZHONGTONG BUS HLDG