Hybrid electric vehicle and its power system and power generation control method
A technology for hybrid electric vehicles and power systems, applied in the field of computer-readable storage media, can solve the problems of low power and efficiency of electric generator generators, low speed of electric generators, and inability to meet the electricity demand for low-speed driving, etc., to achieve Improve vehicle performance, maintain low-speed electrical balance and low-speed ride comfort
Active Publication Date: 2020-02-21
BYD CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] However, in related technologies, the motor-generator of a hybrid vehicle acts as a driving motor while also acting as a generator, which leads to a low rotation speed of the motor-generator when driving at a low speed, and at the same time causes a decrease in the power and efficiency of the motor-generator. Very low, so that it cannot meet the electricity demand for low-speed driving, and it is relatively difficult for the whole vehicle to maintain low-speed electric balance
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0022] Refer below Figure 1-3 A power system of a hybrid electric vehicle proposed in an embodiment of the present invention will be described. The power system provides sufficient power and electric energy for the normal running of the hybrid electric vehicle.
[0023] figure 1 is a schematic block diagram of a power system of a hybrid electric vehicle according to an embodiment of the present invention. like figure 1 As shown, the power system of the hybrid electric vehicle includes: an engine 1 , a power motor 2...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a hybrid power automobile as well as a power system and a power generation control method thereof. The power system comprises an engine, a power motor, a power battery, a DC-DCconverter, an auxiliary motor and a control module. The engine outputs power to first wheels of the hybrid power automobile through a clutch. The power motor is used for outputting power to second wheels of the hybrid power automobile. The power battery is used for supplying power to the power motor. The auxiliary motor is connected with the engine, the power motor, the DC-DC converter and the power battery and is driven by the engine to generate power. The control module is used for acquiring the SOC value of the power battery and the speed of the hybrid power automobile, controls the generation power of the auxiliary motor according to the SOC value of the power battery and the speed of the hybrid power automobile, and obtains the generation power of the engine according to the generation power of the auxiliary motor to control the engine to operates within a preset optimal economical range. Accordingly, the low-speed electric balance and low-speed ride-comfort of the whole automobile can be maintained, and the automobile performance is improved.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a power system of a hybrid electric vehicle, a hybrid electric vehicle, a power generation control method of a hybrid electric vehicle and a computer-readable storage medium. Background technique [0002] With the continuous consumption of energy, the development and utilization of new energy vehicles has gradually become a trend. As one of the new energy vehicles, a hybrid vehicle is driven by an engine and / or an electric motor. [0003] However, in related technologies, the motor-generator of a hybrid vehicle acts as a driving motor while also acting as a generator, which leads to a low rotation speed of the motor-generator when driving at a low speed, and at the same time causes a decrease in the power and efficiency of the motor-generator. Very low, so that it cannot meet the electricity demand for low-speed driving, and it is relatively difficult for the whole vehicle t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60W20/10B60W30/188B60W10/06B60W10/08B60W10/30
CPCB60W10/06B60W10/08B60W10/30B60W20/10B60W30/1888B60W2510/244B60W2520/10B60W2710/0677B60W2710/30Y02T10/62
Inventor 杨冬生白云辉王春生
Owner BYD CO LTD