A kind of control method of hybrid electric vehicle dcdc
A technology of hybrid electric vehicles and control methods, applied in the direction of electric vehicles, vehicle components, electric energy management, etc., capable of solving problems such as adjusting voltage and power
Active Publication Date: 2020-06-23
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The present invention provides a hybrid electric vehicle DCDC control method, which solves the problem that the existing hybrid electric vehicle DCDC control does not adjust the voltage and power output according to the vehicle working conditions, can improve the intelligence of the vehicle power supply, and reduce the energy consumption of the vehicle
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
[0039] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.
[0040] For the current DCDC of hybrid electric vehicles to supply power to on-board loads, it often supplies power according to the power requirements of the loads, and cannot intelligently adjust the voltage and power output according to the working conditions of the whole vehicle. The invention provides a DCDC control method for a hybrid electric vehicle, which limits the output of the DCDC converter by obtaining the input voltage, the requested voltage, the output voltage and the internal temperature of the DCDC converter according to the working conditions of the whole vehicle, so as to solve the problem of DCDC control of the existing hybrid electric vehicle. Controlling the problem of not adjusting the volt...
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 provides a hybrid electric vehicle DCDC control method. The hybrid electric vehicle DCDC control method comprises the steps of obtaining a wakeup instruction, then starting initialization, and conducting standby fault self-detection; judging whether there is a fault or not, if yes, sending a device fault message and conducting power failure for shutdown, otherwise, sending a messagethat the device works properly; after a vehicle controller receives the message that the device works properly, sending a vehicle working condition message to a DCDC converter; according to the vehicle working condition message, adjusting the output voltage and power through the DCDC converter so as to meet the requirements of vehicle-mounted loads for power supply. By means of the hybrid electricvehicle DCDC control method, the vehicle power supply intelligence can be improved, and energy consumption of the vehicle can be reduced.
Description
technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a DCDC control method for a hybrid electric vehicle. Background technique [0002] The DC-DC converter is a DC converter for hybrid electric vehicles. It converts the high-voltage direct current of the power battery into low-voltage direct current to supply power to the on-board battery and the low-voltage load of the vehicle. The traditional DCDC control method is only controlled according to the vehicle operation mode and low-voltage power consumption. When the power consumption is large, it outputs a large power; when the power consumption is small, it uses a low-power voltage output. This kind of DCDC control does not change the load power supply according to the working conditions of the vehicle, resulting in a mismatch between actual demand and supply, resulting in large energy consumption. Therefore, how to adjust the DCDC output voltage according to the wo...
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): B60L3/00
CPCB60L3/0023B60L3/0084Y02T10/72
Inventor 张威臧超
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD