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Shift point correction method, device and vehicle for vehicle

A shift point, vehicle technology, applied in the field of vehicles, can solve problems such as excessive correction value, unreasonable correction value, small correction value, etc., to achieve the effect of a better driving experience

Active Publication Date: 2019-01-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the methods in the above-mentioned related technologies are: the larger the slope resistance, the larger the correction value, which will lead to small slope resistance and too small correction value, and when the slope resistance is large, the correction value is too large, resulting in insufficient compensation or excessive compensation
In addition, the same correction value will be compensated when the resistance of the low gear and the resistance of the high gear are the same, which is obviously unreasonable

Method used

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  • Shift point correction method, device and vehicle for vehicle
  • Shift point correction method, device and vehicle for vehicle
  • Shift point correction method, device and vehicle for vehicle

Examples

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Embodiment Construction

[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote 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.

[0022] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in its...

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Abstract

The invention discloses a gear shifting point correction method for a vehicle. The gear shifting point correction method comprises the steps that the road gradient percentage of the vehicle is obtained; a current gear position and a target gear position of the vehicle are obtained, and a basic gear shifting point is determined according to the current gear position and the target gear position; a correction curve is determined according to the current gear position and the target gear position; and a correction value is determined according to the road gradient percentage and the correction curve, and the basic gear shifting point is corrected according to the correction value. According to the gear shifting point correction method for the vehicle, the basic gear shifting point can be dynamically corrected according to different current gear positions and different resistance sizes under the road conditions with gradients, so that the vehicle is upshifted or downshifted at the optimal time, the intention of a driver is met, and the optimal driving experience is achieved. The invention further discloses a gear shifting point correction device for the vehicle and the vehicle comprising the gear shifting point correction device for the vehicle.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method for correcting a shift point for a vehicle, a device for correcting a shift point for a vehicle and a vehicle. Background technique [0002] The basic shift points of early vehicles equipped with dual-clutch automatic transmissions did not take into account factors such as gradient resistance. That is, no matter how large the slope value is, no correction value is added to compensate the basic shift point. But without slope resistance compensation, when going uphill, the driver will feel that the upshift is premature, and the vehicle has no power after the upshift. [0003] In the related art, a method of correcting the basic shift point according to the gradient resistance is proposed, and the method establishes a linear relationship between the gradient resistance and the correction value. [0004] The disadvantages of the methods in the above-mentioned related tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/11B60W40/076
Inventor 贺静陈胜波赖祝平
Owner BYD CO LTD
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