Energy recovery control method, system and electric vehicle
An energy recovery, electric vehicle technology, applied in electric vehicles, control drives, electric braking systems, etc., can solve the problem of low motor braking energy, and achieve the effect of improving energy recovery rate
Active Publication Date: 2020-09-01
HAIMA NEW ENERGY VEHICLE CO LTD +2
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Therefore, the braking energy of the motor is relatively low
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[0042] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.
[0043] Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art w...
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The present application provides an energy recovery control method, an energy recovery control system and an electric vehicle. The energy recovery control method is applied to an electric vehicle, and the method comprises the steps of acquiring a hydraulic signal of a hydraulic brake device when a brake signal of the electric vehicle is detected. Wherein the brake signal is a signal whether braking is performed or not. The waiting braking moment of the electric vehicle is calculated according to the hydraulic signal. The maximum recovery torque of the motor is calculated according to the running state information of the motor. target electric mechanism torque and a target hydraulic brake torque are calculated according to that brake moment to be braked and the maximum recovery moment. The actual braking torque of the motor is adjusted according to the target electric mechanism torque. The actual braking torque of the hydraulic pressure is adjusted according to the target hydraulic braking torque. The scheme described in the embodiment of the present application can greatly improve the efficiency of energy recovery of the electric vehicle.
Description
technical field [0001] The present application relates to the technical field of electric vehicles, in particular, to an energy recovery control method, system and electric vehicles. Background technique [0002] Braking energy recovery is one of the important technologies of modern electric vehicles and hybrid vehicles. In general internal combustion engine vehicles, when the electric vehicle decelerates and brakes, the kinetic energy of the electric vehicle is converted into heat energy through the braking system and released to the atmosphere. release. In electric vehicles and hybrid vehicles, this wasted motion energy can be converted into electrical energy through braking energy recovery technology and stored in the battery, and further converted into driving energy. For example, when an electric vehicle starts or accelerates, when the driving force is to be increased, the driving force of the motor becomes the auxiliary power of the engine, so that the electric energy...
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IPC IPC(8): B60L7/10B60L15/20
CPCB60L7/10B60L15/2009Y02T10/72
Inventor 郑晓梅汤国龙李翔赵战滑
Owner HAIMA NEW ENERGY VEHICLE CO LTD