A new energy vehicle regenerative braking force distribution method and new energy vehicle

A new energy vehicle, regenerative braking force technology, applied in electric vehicles, electric braking systems, power management and other directions, can solve the problems of low braking energy recovery efficiency, inability to fully utilize the motor braking capacity, and loss of braking, etc. Achieve the effect of ensuring braking efficiency and braking stability, good braking feel and braking stability, and efficient recovery effect

Active Publication Date: 2022-05-17
FAW JIEFANG AUTOMOTIVE CO
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Problems solved by technology

The advantage of this method is that there is little change to the original braking system, both the front and rear wheels can participate in the braking, and the braking feeling is better, but the disadvantage is that the braking capacity of the motor cannot be fully utilized, resulting in low braking energy recovery efficiency, and There may also be a risk of losing the brakes in some extreme conditions

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  • A new energy vehicle regenerative braking force distribution method and new energy vehicle
  • A new energy vehicle regenerative braking force distribution method and new energy vehicle

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Embodiment Construction

[0031] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0032] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific si...

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Abstract

The invention discloses a new energy vehicle regenerative braking force distribution method and the new energy vehicle, and relates to the technical field of new energy vehicle braking. The regenerative braking force distribution method of the new energy vehicle includes: distributing the total braking force to the front wheels and the rear wheels; when the braking intensity is small, more of the total braking force is allocated to the rear wheels; According to the ideal braking force distribution method, the total braking force is distributed to the front wheels and the rear wheels; the distributed total braking force of the rear wheels is divided into rear wheel friction braking force and motor braking force. The total wheel braking force is distributed to the motor as much as possible, and when the motor cannot meet the braking demand, the friction braking force of the rear wheel is used to compensate. When the regenerative braking force is distributed through the regenerative braking force distribution method of the new energy vehicle, the braking capacity of the motor can be fully exerted on the basis of ensuring a better braking feeling, and efficient braking energy recovery can be realized.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle braking, in particular to a new energy vehicle regenerative braking force distribution method and the new energy vehicle. Background technique [0002] Traditional fuel vehicles use mechanical friction for braking, while new energy vehicles can brake the vehicle through the anti-drag torque of the motor. At the same time, the motor generates electricity, and the generated electric energy is stored in the battery, thereby saving energy consumption of the vehicle. [0003] At present, the distribution method of regenerative braking force adopted by new energy vehicles is generally a method in which the ratio of the braking force distributed to the front and rear wheels is fixed, and the braking force of the motor is superimposed on the rear wheels. The advantage of this method is that there is little change to the original braking system, both the front and rear wheels can participate in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L7/18
CPCB60L7/18Y02T10/72
Inventor 高铁石周威力韩景峰冷彪李同占
Owner FAW JIEFANG AUTOMOTIVE CO
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