Energy flow display method and system for dual-motor hybrid electric vehicle, and hybrid electric vehicle
A hybrid electric vehicle and power system technology, applied in the direction of control devices, etc., can solve problems such as unfavorable driving motor, generator, battery and engine operation, complex energy transmission, and inability to quickly and effectively locate
Inactive Publication Date: 2019-09-03
CHINA FIRST AUTOMOBILE
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Problems solved by technology
[0005] According to the examination of the prior art, in the existing public documents of automobile state display technology, the research on the energy flow state display of the hybrid system operation mode, for the dual-motor hybrid electric vehicle, because its configuration scheme is different from that of the pure electric vehicle Or the single-motor hybrid electric vehicle is different, and its display content and form will be different. Since the dual-motor hybrid electric vehicle has many power sources, the energy transfer between each power source is relatively complicated. If the energy of the power system is not The effective combination of use and various power sources is not conducive to the driver's timely knowledge of the operating conditions of the drive motor, generator, battery and engine. When a system failure occurs, it is impossible to quickly and effectively locate the driver. Emergency accidents may occur, causing hidden dangers to driving safety
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[0046] In order to clearly and completely describe the technical solution of the present invention and its specific working process, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:
[0047] like figure 1 As shown, the power source of the hybrid power system of the dual-motor hybrid electric vehicle of the present invention includes: engine, generator, power battery and driving motor, and the connection relationship and working state between each power source are specifically as follows:
[0048] One side of the engine is connected with the transmission mechanism of the vehicle through the clutch, so as to transmit the power to the driving wheels through the transaxle, so as to directly drive the vehicle; the other side of the engine is connected with the generator, on the one hand, it realizes driving the generator Electricity generation, on the other hand, the generator can be used to start the engine when the...
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The invention provides an energy flow display method and system for a dual-motor hybrid electric vehicle, and the hybrid electric vehicle. The energy flow display system comprises a hybrid control unit (HCU), an engine management system (EMS), a driving motor microcontroller unit (MCU1), a power generator microcontroller unit (MCU2), a battery management system (BMS) and an instrument display system IC. According to the energy flow display method, an operation state of a power system, faults and an energy flow of the vehicle are combined effectively, operation states of all power sources of the power system are judged, a fault source is determined, and then the HCU sends a specified energy flow operation mode signal to the instrument display system IC so as to display a corresponding energy flow state interface. Flowing of the abstract energy flow and working situations of all the power sources are displayed to a driver intuitively and vividly, the operation states of all the power sources in the power system of the vehicle are monitored, the driver or a maintenance man is assisted in rapid and accurate troubleshooting, and the safety property of vehicle traveling is improved.
Description
technical field [0001] The invention belongs to the technical field of state display of a power system of a hybrid electric vehicle, and in particular relates to a method for displaying energy flow of a dual-motor hybrid electric vehicle, a display system and the hybrid electric vehicle. Background technique [0002] The power system of a hybrid electric vehicle is composed of a traditional engine system and an electric drive system. It can improve the power and economy of the vehicle through an advanced vehicle control system, and achieve the purpose of reducing fuel consumption and emissions. The power system of a dual-motor hybrid electric vehicle mainly includes an engine, a drive motor, a generator, a power battery, and corresponding control units. [0003] During the driving process of a hybrid electric vehicle, when the vehicle is running normally, there is a process of power battery power consumption in the power system, and when the vehicle is coasting or braking, t...
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IPC IPC(8): B60W50/14B60W50/02
CPCB60W50/0205B60W50/14B60W2050/0043B60W2050/146B60W2510/06B60W2510/08B60W2510/242
Inventor 伍庆龙杨钫
Owner CHINA FIRST AUTOMOBILE