Control method and system for vehicle and vehicle

A control system and control method technology, applied in the field of systems, vehicles, and vehicle control methods, can solve problems affecting ride comfort, strong impact noise, etc., and achieve the effects of improving user experience, reducing sudden changes in torque direction, and increasing service life

Inactive Publication Date: 2015-08-12
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During power transmission, if the output torque continues in one direction, the meshing edge of the wheel train will also be the same edge; if the direction of torque changes during power transmission, the meshing edge of the wheel train will also follow change, such as Figure 5 As shown, from left to right, or from right to left, in the process of changing the meshing edge of the gear train, if the torque changes sharply, a strong impact noise will be generated, which will affect the ride comfort

Method used

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  • Control method and system for vehicle and vehicle
  • Control method and system for vehicle and vehicle
  • Control method and system for vehicle and vehicle

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Embodiment Construction

[0028] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified, rather than indicating or impl...

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Abstract

The invention provides a control system for a vehicle. The control system for the vehicle comprises an acquiring module, a judging module and a control module. The acquiring module is used for acquiring the rotating speed N of the output end of an engine and the rotating speed N_FTC of the input end of a gearbox in the current sampling period, and acquiring the rotating speed N_old of the output end of the engine and the rotating speed N_FTC_old of the input end of the gearbox in the previous sampling period. The judging module is used for comparing the rotating speed N with the rotating speed N_FTC, and comparing the rotating speed N_old with the rotating speed N_FTC_old. The control module is used for controlling the required torque of the engine to be the preset limited torque when the rotating speed N_old is smaller than or equal to the rotating speed N_FTC_old and the rotating speed N is larger than the rotating speed N_FTC, and controlling the required torque of the engine to gradually rise to the target torque within the first preset time. The control system for the vehicle has the advantages of being capable of effectively lowering the impact noise of a power drive chain of the engine and improving the riding comfort. The invention further provides a control method for the vehicle and the vehicle.

Description

Technical field [0001] The present invention relates to the field of automobile technology, in particular to a vehicle control method, system and vehicle. Background technique [0002] The engine power transmission chain is mainly realized by a gear train. There is bound to be a gap in the design of gears, such as Figure 5 As shown, there is a gap between gear A and gear B. In the process of power transmission, if the output torque continues in one direction, the meshing edge of the gear train will also be the same edge; if the direction of the torque changes during the power transmission, the meshing edge of the gear train will also follow To change, such as Figure 5 As shown, from the left to the right, or from the right to the left, in the process of changing the meshing edge of the gear train, if the torque changes drastically, it will produce a stronger impact noise, which affects the ride comfort. Summary of the invention [0003] The present invention aims to solve at lea...

Claims

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Application Information

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IPC IPC(8): B60W30/20B60W30/184
CPCB60W30/184B60W30/20
Inventor 王勇于吉超
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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