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Vehicle adaptive cruise control method and system

A technology of adaptive cruise and control method, which is applied in the field of vehicle control, can solve problems such as insufficient power, and achieve the effect of avoiding insufficient power and improving driving comfort

Inactive Publication Date: 2019-02-15
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a vehicle adaptive cruise control method and system, the vehicle adaptive cruise control method and system can effectively solve the problem of insufficient power after shifting gears of vehicles with adaptive cruise function

Method used

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  • Vehicle adaptive cruise control method and system
  • Vehicle adaptive cruise control method and system
  • Vehicle adaptive cruise control method and system

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Embodiment Construction

[0038] The purpose of the present invention is to provide a vehicle adaptive cruise control method and system, the vehicle adaptive cruise control method and system can effectively solve the problem of insufficient power after a vehicle with adaptive cruise function shifts gears.

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", ...

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Abstract

The invention discloses a vehicle adaptive cruise control method and system. The vehicle adaptive cruise control method comprises the following steps that S1, the vehicle following distance L of a vehicle is obtained; S2, the vehicle following distance L is compared with a first preset distance A1, if L>=A1, returning to the step S1, and if L<A1, entering into the step S3; S3, the output power ofan engine is limited; S4, whether a gear shifting request exists or not is judged, if yes, entering into the step S5, and if not, returning to the step S3; and S5, before gear shifting, current outputtorque is frozen as a first frozen torque, and after gear shifting, the first frozen torque is recovered directly. The vehicle adaptive cruise control method and system can effectively solve the problem of insufficient power after gear shifting of the vehicle with an adaptive cruise function.

Description

technical field [0001] The present invention relates to the technical field of vehicle control, and more specifically, to a vehicle adaptive cruise control method and system. Background technique [0002] Adaptive Cruise Control (ACC, Adaptive Cruise Control) is an intelligent automatic control system. During the driving process of the vehicle, the distance sensor (radar) installed in the front of the vehicle continuously scans the road ahead of the vehicle, and at the same time the wheel The speed sensor collects the vehicle speed signal. When the distance to the vehicle in front is too small, the ACC control unit acts to properly brake the wheels and reduce the output power of the engine so that the vehicle and the vehicle in front always maintain a safe distance. [0003] However, for a vehicle with an adaptive cruise function, if there is a need to shift gears during the car-following process, there will be insufficient power after the shift ends, affecting the driver's...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/16B60W10/06B60W10/11
CPCB60W10/06B60W10/11B60W30/16B60W2710/0666B60W2710/1005
Inventor 刘中秀张鲁兵李苑玮孙晓鹏王震华
Owner WEICHAI POWER CO LTD
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