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A dual-motor controller energy control method and system with a booster device

A technology of energy control and booster device, which is applied in the direction of control drive, control device, electric vehicle, etc., can solve the problem that the maximum output performance of the dual-motor system cannot be exerted, the matching margin of the whole vehicle is large, and the dual-motor system is over-current fault or control. Conservative and other issues

Active Publication Date: 2019-02-19
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology

[0004] In view of this, the present invention provides a dual-motor controller energy control method and system with a booster device to solve the problem in the prior art due to the many operating modes of the two-motor system. Reasonable coordination and management of allocation may easily lead to overcurrent faults in the dual-motor system or over-conservative control, a large margin for matching with the entire vehicle, and failure to exert the maximum output performance of the dual-motor system with a booster device

Method used

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  • A dual-motor controller energy control method and system with a booster device
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  • A dual-motor controller energy control method and system with a booster device

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Embodiment Construction

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] The present invention calculates the surplus power through the current parameters, and according to the current working mode and status, the output power of one of the motor systems of the dual-motor controller is preferentially guaranteed, and the allowable output torque of the motor system is fed back in real time to ensure that the first motor system and the second motor During the use of the system, there will be no over-current phenomenon, and it ca...

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Abstract

The invention discloses a method and system for controlling energy of a two-motor controller with a boosting apparatus. The method comprises the following steps: calculating surplus power by virtue of current parameters, ensuring the output power of one motor system of the two-motor controller in priority according to a current working mode and state, feeding back an allowable output torque of the motor system in real time, and ensuring a first motor system and a second motor system not to have over-current phenomenon in an application process. A maximum demand of an entire car can be satisfied, and the maximum output performance of the two-motor controller is played. In addition, current value is adopted for calculation, so that time delay is reduced, and the over-current fault of the two-motor system or the risk of damaging the two-motor system are reduced.

Description

technical field [0001] The invention relates to the technical field of motor controller control for electric vehicles, and more specifically relates to a dual motor controller energy control method and system with a booster device. Background technique [0002] With the large-scale promotion and application of electric vehicles, the power transmission structures of hybrid electric vehicles and pure electric vehicles are various. Motors for electric vehicles tend to be high-speed, small-sized, and the number is also increasing. The increase in electrical components used in electric vehicles poses new challenges to the structural layout of the vehicle, and at the same time promotes the high integration of motor components, which is used to reduce the difficulty of structural layout of the vehicle and reduce the weight of the vehicle, while improving the electrical safety of the vehicle . For electric vehicles with more than one motor, dual-motor controllers are the best choi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/32
CPCB60L15/32B60L2240/423B60L2240/527B60L2240/529
Inventor 龙成冰朱小丰周洪波苏岭贺刚
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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