Hybrid electric vehicle and its energy feedback control method and system
A hybrid electric vehicle and energy feedback technology, applied in hybrid electric vehicles, motor vehicles, control devices, etc., can solve the problems affecting the driving comfort of electric vehicles and the energy feedback efficiency is not high enough, so as to improve the energy feedback efficiency and improve driving comfort sexual effect
Active Publication Date: 2021-02-23
BYD CO LTD
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Problems solved by technology
[0003] At present, due to the absence of a good energy feedback control strategy, the driving comfort of electric vehicles will generally be affected when the driving inertia energy of electric vehicles is fed back, and the energy feedback efficiency is not high enough.
Method used
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Embodiment Construction
[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate 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 and are intended to explain the present invention and should not be construed as limiting the present invention.
[0027] The hybrid electric vehicle and its energy feedback control method and system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0028] The hybrid electric vehicle in the embodiment of the present invention may include a motor, a power battery, an engine, and the like. Among them, the motor can be a driving motor, which can be used as an electric motor to output driving force to the hybrid vehicle under the power supply of the power battery, and can ...
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The invention discloses a hybrid electric vehicle and its energy feedback control method and system. The method includes: when the accelerator pedal is in the release process and the duration of the depth is less than the preset depth is longer than the preset time, and the vehicle speed, brake pedal, gear When the position and the anti-lock braking system meet the preset conditions, enter the coasting feedback mode; in the coasting feedback mode, select the corresponding coasting feedback curve according to the coasting feedback intensity, and control the motor according to the selected coasting feedback curve. At the same time, when When the brake pedal, gear position, and anti-lock braking system all meet another preset condition, switch to the brake feedback mode; in the brake feedback mode, the current coasting feedback torque is determined as the base feedback torque according to the selected coasting feedback curve , and select the corresponding braking feedback curve according to the sliding feedback intensity, and determine the current braking feedback torque as the compensation feedback torque according to the selected braking feedback curve; control the motor according to the basic feedback torque and the compensation feedback torque.
Description
technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to an energy feedback control method of a hybrid electric vehicle, a non-transitory computer readable storage medium, an energy feedback control system of a hybrid electric vehicle and a hybrid electric vehicle. Background technique [0002] With the promotion and popularization of new energy electric vehicles, users have higher and higher requirements on the energy consumption and comfort of electric vehicles. In electric vehicles, the motor can be used not only as a motor to drive the vehicle, but also as a generator to generate reverse torque to feed back the driving inertia energy of the electric vehicle to achieve the effect of energy storage. [0003] At present, due to the absence of a good energy feedback control strategy, when the driving inertia energy of an electric vehicle is fed back, it generally affects the driving comfort of the electric vehicle, and...
Claims
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IPC IPC(8): B60W20/14B60W30/18B60W10/08
CPCB60W10/08B60W30/18127B60W2520/10B60W2540/10B60W2540/12B60W2540/16B60W2710/083B60W20/14
Inventor 杨冬生彭勃杨远
Owner BYD CO LTD