Method and device for distributing power generated by hybrid electric vehicles in series mode
A technology for hybrid electric vehicles and power generation, which is applied in the field of automobile control to achieve the effect of ensuring vehicle power and good economy.
Active Publication Date: 2018-03-30
SAIC MOTOR
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Problems solved by technology
[0006] However, in the prior art, the power source of the hybrid electric vehicle is not in the series mode, there are both vehicle driving power requirements and the demand for forced charging of the power battery (SOC is very low) and in the case of vehicle braking energy recovery, Make a more reasonable allocation of power generation in series mode
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[0027] Since the prior art does not consider the power source of a hybrid vehicle in series mode, when there is both a vehicle driving power requirement and a requirement for forced charging of the power battery (SOC is very low) and when the vehicle braking energy is recovered, the hybrid The power generation power of the electric vehicle is allocated more reasonably, so it is easy to cause the vehicle to be underpowered or unable to reasonably control the SOC balance of the power battery under certain working conditions, and it is not possible to achieve better economic efficiency when braking energy recovery in series mode. sex.
[0028] In order to solve the above problems, the technical solution of the present invention provides a series power distribution scheme that prioritizes meeting the driving power requirements of the vehicle and prioritizing energy recovery when a plug-in hybrid electric vehicle generates power in series mode. In the series mode, by considering th...
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The invention relates to an allocating method and device for electricity generating power of a hybrid electric vehicle in a series connection mode. The allocating method comprises the following steps of when the power source of the hybrid electric vehicle is in the series connection mode, allocating ISG electricity generating power for driving the vehicle and charging a power battery according to the order of priority of power requirements for driving the vehicle and power requirements for charging the power battery; and when braking energy is recycled, prior allocating TM electricity generating power for charging the power battery. According to the technical scheme of the allocating method and device disclosed by the invention, when the allocation of the electricity generating power to the power requirements for driving the vehicle and the power requirements for charging the power battery is considered in the series connection mode, the ISG electricity generating power is allocated to preferentially meet the requirements for driving the vehicle, so that certain vehicle power performance is guaranteed; when the braking energy is recycled, the TM electricity generating power is preferentially allocated to charge the power battery, so that better economical efficiency can also be achieved.
Description
technical field [0001] The invention relates to the technical field of vehicle control, in particular to a method and device for distributing power generated by a hybrid vehicle in series mode. Background technique [0002] With the increasing international attention to energy security and environmental protection issues, countries have become more and more strict on vehicle emissions. Reducing dependence on energy and realizing energy conservation and emission reduction has become an urgent problem to be solved for the sustainable development of the world economy. Hybrid vehicles and pure electric vehicles have become the development trend of today's automobile industry. The gasoline-electric hybrid vehicle combines the motor and the engine, and realizes reasonable energy-saving and emission-reduction effects, idling shutdown, motor start, intelligent charging, regenerative braking, motor assist, electric crawling and other hybrid functions for various working conditions. ...
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IPC IPC(8): B60W20/00B60W10/26B60W10/06B60W10/08
CPCY02T10/62
Inventor 孙俊冯亚军张霏霏张鹏君
Owner SAIC MOTOR