Vehicle control method, system and vehicle

A control system and control method technology, applied in the field of vehicle control methods, systems and vehicles, 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: 2018-01-19
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Vehicle control method, system and vehicle
  • Vehicle control method, system and vehicle
  • Vehicle control method, system and vehicle

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refe...

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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 invention relates to the technical field of automobiles, in particular to a vehicle control method, system and vehicle. Background technique [0002] The engine power transmission chain is mainly realized by the gear train. In the design of the gear there must be clearance, such as Figure 5 As shown, there is a gap between the two gears. 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 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 sharply, a strong impact noise will be generated, which will affect the ride comfort. Contents of the invention [0003] The present invention aims to solve at least one of the above...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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