A parallel vehicle hybrid control system and control method
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A control system and hybrid technology, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve the problems of waste of braking energy, high peak value of starting current of the drive motor, poor dynamic performance, etc., and can adjust the starting time, The effect of avoiding vehicle energy waste and improving service life
Pending Publication Date: 2018-12-11
XUCHANG UNIV
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[0004] The technical problem to be solved by the present invention is to provide a parallel vehicle hybrid power control system and control method, which mainly solves the problem of poor power performance of the whole vehicle when the existing electro-hydraulic hybrid vehicle is started, too high peak value of the starting current of the drive motor, and braking energy waste etc.
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[0021] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the drawings and specific embodiments. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terms used in the specification of the present invention in this specification are only for the purpose of describing specific embodiments, and are not used to limit the present invention.
[0023] Such as figure 1...
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Abstract
The invention provides a parallel vehicle hybrid control system and a control method. The control system includes a battery, a drive motor, a main clutch, a variable displacement pump, a first one-wayvalve, a second one-way valve, a first safety valve, a second safety valve, a first solenoid valve, a low-pressure accumulator, a high-pressure accumulator, a second solenoid valve, a third solenoidvalve, a fourth solenoid valve, a fifth solenoid valve, a motor, a second clutch, a coupler, a speed reducer, and a control system. The control method comprises a forward start control mode, a reversestart control mode, a forward braking energy recovery control mode and a reverse hydraulic energy regenerative braking control mode. As that control mode is closed, components of the hydraulic pow control system can be reduced and the weight of the whole vehicle can be reduced; The invention can effectively eliminate the starting impulse current, adjust the starting time, prolong the service lifeof the battery and increase the mileage of the vehicle; The forward and reverse braking energy can be recovered effectively, the energy utilization rate can be improved, and the energy waste of the vehicle during braking can be avoided effectively.
Description
Technical field [0001] The invention relates to a hydraulic control system, in particular to a parallel vehicle hybrid power control system and a control method. Background technique [0002] Currently, public transportation vehicles in operation will frequently start and brake due to various conditions. When starting, the inrush current generated by the drive motor will generally be several times larger than the rated current, which will seriously affect the motor, battery and other components. Life. In addition, during the braking process of a bus, the braking energy is generally converted into heat on the brake and lost in the form of heat energy, which not only wastes energy, but also causes system heating and component loss. [0003] At present, the energy storage components for braking energy recovery on hybrid vehicles mainly exceed capacitors, and their energy density is small and the price is relatively expensive. Compared with super capacitors, hydraulic accumulators ha...
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