A start-stop control system for a hybrid electric vehicle
A hybrid electric vehicle, start-stop control technology, applied in the direction of hybrid electric vehicles, motor vehicles, transportation and packaging, etc., can solve the complex power system and transmission system of hybrid electric vehicles, long development cycle of hybrid electric vehicles, high cost of production platform, etc. problem, to achieve the effect of benefiting from the recovery of parking kinetic energy, low cost of modification, and reduction of fuel consumption
Active Publication Date: 2020-07-28
TONGJI UNIV
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Problems solved by technology
[0003] At present, the main problems of the start-stop system of hybrid electric vehicles are: (1) It is impossible to directly modify the existing vehicle models to realize hybrid power and start-stop functions; (2) it needs to be realized on existing hybrid electric vehicles, and the entire hybrid The development cycle of automobiles is long, and the cost of redeveloping the production platform is high; (3) The power system and transmission system of hybrid electric vehicles are complex and the production cost is high
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Embodiment
[0042] figure 1 It is a structural principle diagram of a mild hybrid vehicle according to an embodiment of the present invention. Such as figure 1 As shown, the main components of the mild hybrid vehicle include a second clutch 1, a first clutch 2, a transmission 3, a transmission 4, an engine 5, an ISG motor 6, a 48V power supply 7, wheels 8a and 8b, and a controller 30, wherein, The modified power subsystem 10 includes a 48V power supply 7 , an ISG motor 6 and a first clutch 2 . The prime mover subsystem includes an engine 5 , a second clutch 1 and a transmission 3 .
[0043] The mild-hybrid vehicle used in this embodiment is refitted on the basis of the original traditional fuel vehicle, retaining the motive force subsystem 20, and mainly adding the refitting power subsystem 10, and the controller 30 communicates with the refitting power subsystem 10 and the motive force subsystem 20 through the bus They are connected separately to realize two-way transmission of electr...
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The invention relates to a start-stop control system of a hybrid electric vehicle. The start-stop control system of the hybrid electric vehicle comprises a transmission device, a motive power subsystem, a refitting power subsystem and a controller, wherein the transmission device is used for transmitting power to driving wheels; the motive power subsystem is a power system of an original oil-firedvehicle, is used for generating the source power and is connected with the transmission device through the refitting power subsystem; the refitting power subsystem is used for realizing the start-stop and hybrid drive of the hybrid vehicle; and the controller integrates a start-stop control method of the hybrid electric vehicle, input signals are collected by sensors, and the motive power subsystem and the refitting power subsystem are judged and controlled according to the set condition range, so that hybrid electric vehicle enters a braking energy recovery mode, a driving mode, an active sliding mode or a neutral sliding mode. Compared with the prior art, the start-stop control system of the hybrid electric vehicle has the advantages of being convenient to refit, low in cost, maximizedin power, economic and the like.
Description
technical field [0001] The invention relates to the field of hybrid electric vehicle control, in particular to a hybrid electric vehicle start-stop control system. Background technique [0002] With the rapid economic development and the acceleration of urbanization, the world is facing the dual pressure of solving the energy crisis and controlling environmental pollution. Among all fossil energy consumption, the proportion of energy consumption in the field of transportation is very high, and the field of road transportation is not only the largest energy consumption and emission (accounting for more than 70%) and the fastest growing subject among various transportation modes, but also Major source of air pollution in large cities. Therefore, increasingly stringent environmental protection and emission regulations have put forward higher requirements for automobile energy saving and emission reduction. Under the premise that electric vehicles cannot be used on a large sca...
Claims
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IPC IPC(8): B60W20/10B60W20/14B60W20/40B60W10/02B60W10/06B60W10/08B60W10/18
CPCY02T10/62
Inventor 郑俊生郭鑫秦楠巩瑞奇戴宁宁田家印
Owner TONGJI UNIV