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A method of mode-controlling new energy vehicle retarder system

A new energy vehicle, mode control technology, applied in the field of new energy vehicles, can solve problems such as torque switching and excessive speed unevenness, vehicle component damage, driver and passenger discomfort, etc., to reduce damage and reduce service life, reduce Shock and discomfort, effect of optimized control strategies

Active Publication Date: 2019-06-04
浙江鑫可传动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the power system of new energy vehicles, especially the reducer system, during operation, especially when the driving mode is switched or the gear ratio is switched, due to the output torque of the engine, the torque transmitted by the hydraulic control clutch and the output Torque fluctuations, or when the gear is switched is not smooth enough, there will be torque and transmission speed fluctuations, resulting in torque switching and excessive speed, which will bring discomfort to the driver and passengers, and will easily cause damage to vehicle components and shorten the life of the vehicle. shorter

Method used

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  • A method of mode-controlling new energy vehicle retarder system
  • A method of mode-controlling new energy vehicle retarder system

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Embodiment Construction

[0020] Attached below figure 1The mode control method of the new energy vehicle speed reducer system of the present invention is described in detail.

[0021] A mode control method for a new energy vehicle reducer system, the new energy vehicle reducer system includes: a central electronic control unit ECU, a generator / motor 2, a hydraulic clutch 3, a reducer 4, an engine 1, and a detection and sensing unit 6. Electric energy storage device 5;

[0022] The hydraulically controlled clutch 3 is used to selectively disconnect or combine the engine 1 and the generator / motor 2 as required, and is configured to change the torque transmission value transmitted by the hydraulically controlled clutch 3 by adjusting the magnitude of the hydraulically controlled pressure;

[0023] Speed ​​reducer 4, it is arranged on generator / motor 3 downstream; Described speed reducer 4 comprises driving input shaft 11, first gear 16, second gear 13, input shaft clutch 14, driven output shaft 12, the ...

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Abstract

The invention relates to a method of mode-controlling a new energy vehicle retarder system in the field of new energy vehicles. The new energy vehicle retarder system mode-control method comprises thesteps that a central electronic control unit (ECU) is used for predicting a running mode of a vehicle about to run, and a novel transmission system is controlled according to the running mode. According to the method, the control mode is optimized; the control strategy is refined, and a newly designed transmission system is matched, such as the special design of combining a planetary gear set anda gear transmission system and adopting a plurality of hydraulic control clutches and one-way clutches, so that the impact in the running process of the vehicle is reduced, the driving experience isimproved, and the problems of damage and service life reduction which are possibly caused by parts are reduced.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a new energy vehicle reducer system. Background technique [0002] According to news reports, sales of new energy vehicles are in full swing, but there are still many problems with existing vehicles, such as service life and driving experience. For the power system of new energy vehicles, especially the reducer system, during operation, especially when the driving mode is switched or the gear ratio is switched, due to the output torque of the engine, the torque transmitted by the hydraulic control clutch and the output of the generator / motor Torque fluctuations, or when the gear is switched is not smooth enough, there will be torque and transmission speed fluctuations, resulting in torque switching and excessive speed, which will bring discomfort to the driver and passengers, and will easily cause damage to vehicle components. shorter. The present invention proposes...

Claims

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Application Information

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IPC IPC(8): B60W30/19B60W10/06B60W10/08B60W10/10B60W10/02B60W30/182
Inventor 金建华
Owner 浙江鑫可传动科技有限公司