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Control method and control system for recovering vehicle braking coasting energy

A technology of energy recovery and vehicle braking, which is applied in the direction of climate sustainability, road transportation, sustainable transportation, etc., can solve the problems of insufficient kinetic energy, energy waste, and the great influence of drivers' driving habits, so as to achieve intelligent Effects of recycling, improving economy and intelligence, avoiding blindness and energy waste

Active Publication Date: 2020-03-06
WEICHAI POWER CO LTD
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Problems solved by technology

[0003] However, the current method of braking and coasting energy recovery based on the driver's intention is blind and is greatly affected by the driver's driving habits.
For example, when encountering a traffic light, if the distance between the vehicle in front and the vehicle in front is far, the driver releases the accelerator pedal and coasts, and the energy of the vehicle coasting is recovered, which may cause the vehicle to stop when the kinetic energy is not enough to maintain the vehicle in front
At this time, the driver needs to depress the accelerator pedal again to refuel. Considering the conversion efficiency of gasoline and electricity, energy has been wasted at this time.

Method used

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  • Control method and control system for recovering vehicle braking coasting energy
  • Control method and control system for recovering vehicle braking coasting energy

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Embodiment Construction

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0026] figure 1 It is a structural schematic diagram of an embodiment of the present invention. like figure 1 As shown, the control system for recovering vehicle braking coasting energy according to the present invention includes a detection system 10 and a vehicle controller 20 . The vehicle controller 20 includes an analysis system 21 and an execution system 22. The detection system 10 is used to detect the distance value betwe...

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Abstract

The invention belongs to the technical field of vehicle control and in particular relates to a control method and a control system for recycling braking sliding energy of a vehicle. The control methodfor recycling the braking sliding energy of the vehicle comprises the steps of completely loosening an accelerator pedal of the vehicle; detecting a distance value between the vehicle and a precedingvehicle by using a detection system; calculating a minimum vehicle speed value at which the braking sliding energy of the vehicle is recycled at the current distance between the vehicle and the preceding vehicle; judging whether a real-time vehicle speed of the vehicle is higher than the minimum vehicle speed value at which the braking sliding energy of the vehicle is recycled or not; if the real-time vehicle speed of the vehicle is higher than the minimum vehicle speed value at which the vehicle recycles the braking sliding energy, recycling the braking sliding energy of the vehicle. According to the control method and the control system for recycling the braking sliding energy of the vehicle, manual decision-making blindness and energy waste can be avoided, the braking sliding energy can be intelligently recycled, and the economic efficiency and intelligence of the whole vehicle are improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle control, and in particular relates to a control method and a control system for recovering vehicle braking and coasting energy. Background technique [0002] The current braking and coasting energy recovery strategy of intelligent driving vehicles is generally controlled based on the driver's intention. When encountering a red light or other road conditions in the city, the driver completely releases the accelerator pedal to keep the vehicle coasting. The coasting inertia of the vehicle is used to drive the generator to generate electricity, so as to recover the coasting energy and store it in the power battery to drive the vehicle, or the vehicle uses a composite power supply or a super capacitor for the next start of the vehicle. [0003] However, the current method of recovering energy from braking and coasting based on the driver's intention has great blindness and is greatly affected by the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W40/04
CPCB60W30/18072B60W40/04Y02T10/60
Inventor 祝秀丽徐艳杰
Owner WEICHAI POWER CO LTD
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