A dual-motor hybrid control method and device based on a planetary gear system
A dual-motor, planetary gear technology, applied in the direction of control devices, motor vehicles, hybrid vehicles, etc., can solve the problems of high fuel consumption, lack of effective speed regulation means, low efficiency, etc., and achieve the effect of reducing fuel consumption and optimizing control strategies
Active Publication Date: 2020-11-03
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0003] The existing hybrid control strategy of the current hybrid control lacks effective speed regulation means, and may run in a low-efficiency area, resulting in high fuel consumption. Intelligently adjust engine operating conditions
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[0027] 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 of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0028] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0029] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses a dual-motor hybrid control method and device based on a planet gear system, and relates to the technical field of hybrid vehicles. The dual-motor hybrid control method based on the planet gear system includes the following steps that current operation information of a vehicle is acquired, driving conditions are judged, and the whole-vehicle required power is calculated; whether an engine is required to operate is judged; the required operation target level of the engine is judged; the required power of a first motor and the required power of a second motor are calculated; and the required power is converted to generate corresponding control variables, and the control variables are output to controllers of corresponding parts. The control logic is improved, so thatthe engine can be started or stopped as required; meanwhile, the influence of cold start conditions of the engine on the oil consumption is considered, the engine is prevented from operating in the high-power state when the temperature is too low, and the oil saving purpose is achieved; and the control strategy of the motors is optimized, so that the engine can operation under better conditions, and the oil consumption is reduced.
Description
technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a dual-motor hybrid control method and device based on a planetary gear system. Background technique [0002] With the increasingly stringent national energy conservation and environmental protection requirements, hybrid power has become an important means for traditional fuel vehicles to reduce fuel consumption and emissions. A hybrid vehicle is to add a motor or a motor generator (a motor with both functions of a generator and a motor) as the power source of the vehicle on the basis of the internal combustion engine of a traditional energy vehicle, so as to realize "one vehicle with two sources". This is a hybrid vehicle The biggest feature is also the "magic weapon for winning". The electric motor can reach the peak torque in an instant and the operation process is quiet and stable. The generator can recover kinetic energy and convert it into electrical energ...
Claims
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IPC IPC(8): B60W20/10B60W20/15B60W10/06B60W10/08
CPCB60W10/06B60W10/08B60W20/10B60W20/15B60W2510/0676B60W2510/244B60W2520/10B60W2540/10B60W2540/12B60W2710/0644B60W2710/0666B60W2710/086Y02T10/62
Inventor 刘闪闪李小坚邢国雨常耀红沈伟朱增怀钟磊谈健
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD