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Adaptive cruise gear-shifting control method based on two-stage planetary line two-speed transmission

A technology of adaptive cruise and control method, applied in the direction of transmission control, components with teeth, belt/chain/gear, etc., can solve problems such as high energy consumption, low vehicle working efficiency, and inability to accurately judge the timing of shifting

Pending Publication Date: 2019-07-30
吉林大学青岛汽车研究院
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Problems solved by technology

[0005] When the vehicle is running, the driver needs to change the gear according to the road surface to keep the vehicle in an efficient working state. However, in the actual driving process, some drivers cannot accurately judge the timing of shifting due to lack of experience, resulting in low working efficiency and high energy consumption.

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  • Adaptive cruise gear-shifting control method based on two-stage planetary line two-speed transmission
  • Adaptive cruise gear-shifting control method based on two-stage planetary line two-speed transmission
  • Adaptive cruise gear-shifting control method based on two-stage planetary line two-speed transmission

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0034] The invention provides an adaptive cruise shift control method based on a two-stage planetary two-speed transmission, which judges the gear suitable for the current vehicle according to the road vehicle conditions and the driving environment when the vehicle is running, so as to ensure that the vehicle is in an efficient working state.

[0035] like figure 1 As shown, the two-speed transmission based on the dual-stage planetary row of the present invention is driven by an electric drive system, wherein the transmission is composed of a first planetary row, a second planetary row and a clutch; the electric drive system includes: a first motor and a second Two motors.

[0036] The first motor is composed of a motor shaft 110, a stator 120, and a rotor 130, wherein the s...

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Abstract

The invention discloses an adaptive cruise gear-shifting control method based on a two-stage planetary line two-speed transmission. The adaptive cruise gear-shifting control method based on the two-stage planetary line two-speed transmission comprises the following steps of: step one. obtaining the speed of the vehicle, the opening degree of an accelerator, the quality of the vehicle, the speed ofa previous vehicle, and the distance between the vehicle and the previous vehicle, and determining the reference gear coefficient of the vehicle according to the speed of the vehicle, the opening degree of the accelerator, the quality of the vehicle, the speed of the previous vehicle, and the distance between the vehicle and the previous vehicle; step two. obtaining the outdoor ambient temperature, humidity, road surface adhesion coefficients and outdoor light intensity, and determining the environment coefficients of vehicle running according to the outdoor ambient temperature, humidity, road surface adhesion coefficients and outdoor light intensity; and step three. judging the appropriate gear of the vehicle at the current running state according to the reference gear index of the vehicle and the environment index of vehicle running. The adaptive cruise gear-shifting control method based on the two-stage planetary line two-speed transmission can assist a driver to determine the correct gear-shifting opportunity and keeps the vehicle in an efficient working state.

Description

technical field [0001] The invention belongs to the technical field of vehicle shift control, in particular to an adaptive cruise shift control method based on a two-stage planetary two-speed transmission. Background technique [0002] The development of the automobile industry pollutes the human living environment very much, especially in big cities. The exhaust gas emitted by various motor vehicles seriously endangers human health. This hazard is particularly serious in industrially developed countries. The electric drive system does not emit any substances, that is, zero emissions, and is environmentally friendly. Therefore, gradually replacing gasoline vehicles with electric vehicles is the direction of efforts of all countries in the world today. [0003] The automobile transmission is a transmission device used to coordinate the engine speed and the actual driving speed of the wheels, and is used to exert the best performance of the engine. The transmission can produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/24F16H59/44F16H59/52F16H59/64F16H59/66F16H61/02
CPCF16H61/0213F16H59/24F16H59/44F16H59/52F16H59/64F16H59/66F16H2059/443
Inventor 雷雨龙温官正陈魏扈建龙付尧李兴忠
Owner 吉林大学青岛汽车研究院
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