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A vehicle dynamic control system and method based on traffic congestion

A vehicle power and control system technology, applied in the direction of control devices, vehicle components, external condition input parameters, etc., can solve problems such as deterioration of ride comfort, amplify AMT/DCT shortcomings, and aggravate clutch wear, so as to improve ride comfort and shorten The effect of slipping time and reducing the number of shifts

Active Publication Date: 2019-12-27
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of road congestion, if the original power control system is used, the clutch will engage or disengage frequently, and the gearbox will also frequently shift gears, which further magnifies the shortcomings of AMT / DCT and deteriorates ride comfort. Exacerbated clutch wear

Method used

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  • A vehicle dynamic control system and method based on traffic congestion
  • A vehicle dynamic control system and method based on traffic congestion
  • A vehicle dynamic control system and method based on traffic congestion

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] like figure 1 As shown, the vehicle power control system consists of two parts: a road condition recognition unit (P1) and an execution unit (P2). When the vehicle speed is lower than 35km / h, the road condition recognition unit starts to work, and the road condition recognition unit will identify whether the current road condition is normal, congested or Severe congestion state, and send information to the execution unit. Further, when the execution unit receives the severe congestion information, the control system enters the severe congestion mode. At this time, the transmission gear will be limited to the first gear, and the ECU will correct the fuel injection amount and the throttle opening, and adjust according to the vehicle speed and the pedal. The opening information judges whether to maintain the current mode or ente...

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Abstract

The invention relates to the field of vehicle control systems, in particular to a vehicle power control system and method based on a traffic jam situation. The vehicle power control system comprises a traffic condition recognition program and an execution program, wherein the traffic condition recognition program judges whether the current traffic condition is normal, jammed or severely jammed through the vehicle speed and the degree of pedal opening, and can use real-time traffic condition information to improve the speed and the accuracy of recognition; and the execution program can judge whether to maintain the current mode or switch to other modes based on the actual situation in the execution process. According to the vehicle power control system and method disclosed by the invention, the times of gear shifting of a transmission in a vehicle with an AMT / DCT transmission can be reduced under the jammed traffic condition, so that the impact caused by gear shifting while the vehicle runs is reduced, the riding comfort of the vehicle in the jammed traffic condition can be improved, the energy loss caused by a clutch disc during gear shifting can be reduced, the clutch cannot fail due to excessively-high temperature in the jammed traffic condition, and the service life of the clutch is prolonged.

Description

technical field [0001] The invention relates to the field of vehicle control systems, in particular to a vehicle power control system and method based on traffic congestion. Background technique [0002] Compared with hydromechanical transmission (AT), mechanical automatic transmission (AMT) and dual clutch transmission (DCT) have the advantages of relatively simple structure, convenient operation, high transmission efficiency, and low manufacturing cost, so they are used by major automobile manufacturers widely used by merchants. However, there are also some problems in the AMT / DCT gearbox. Due to the different speeds of the driving and slave ends when the clutch is engaged, the smoothness of starting or shifting is not as good as that of the AT gearbox. [0003] With the rapid development of China's economy and the continuous increase of residents' disposable income, the number of motor vehicles in China has reached 290 million. At the same time, traffic congestion has b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W10/10B60W40/105B60W40/04
CPCB60W10/06B60W10/10B60W40/04B60W40/105B60W2050/0043B60W2520/10B60W2540/106B60W2554/00B60W2710/0616B60W2710/1005
Inventor 徐鑫张邦基张农
Owner HUNAN UNIV
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