Power supply self-protection system and method for a hybrid electric vehicle
A self-protection technology for hybrid vehicles, which is applied to vehicle components, electric vehicles, electrical devices, etc., and can solve problems such as large inrush currents in low-voltage circuits, relay adhesion, and vehicle failures
Active Publication Date: 2020-07-14
BEIJING INSTITUTE OF TECHNOLOGYGY +1
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] In order to realize unmanned driving of hybrid vehicles, various low-voltage and high-voltage equipment are often equipped on the vehicle. The low-voltage equipment is powered on and off at the same time, which will generate a relatively large impact current on the low-voltage circuit. Cause vehicle failure, therefore, in order to protect the low-voltage and high-voltage circuit systems of hybrid unmanned vehicles, it is necessary to formulate appropriate power-on and power-off strategies
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
[0070] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principle of the present invention.
[0071] A specific embodiment of the present invention discloses a power supply self-protection system of a hybrid vehicle,
[0072] Among them, the electrical equipment carried by hybrid unmanned vehicles includes low-voltage equipment and high-voltage equipment;
[0073] Low-voltage equipment can be divided into planning system, perception system, underlying control system, pilot, display and other low-voltage equipment, etc.;
[0074] Among them, the planning system includes planning industrial computer, inertial navigation and satellite receiver;
[0075] The perception system includes a perception industrial computer, a camera, a millimeter-wave ra...
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 relates to a power supply self-protection system and a method of a hybrid electric vehicle, wherein the power supply self-protection system comprises a vehicle controller, a low-voltagedistribution box and a high-voltage distribution box; The whole vehicle controller is electrically connected with the low-voltage distribution box to control the low-voltage equipment to power up or power down according to the set sequence; The whole vehicle controller is electrically connected with the energy controller, and the high-voltage equipment is controlled to be powered on or off by theenergy controller. The high-voltage equipment is powered on after the low-voltage equipment is powered on through the control; After the high-voltage equipment is powered down, the low-voltage equipment is powered down in the set order. The invention avoids generating relatively large impulse current to the low-voltage circuit in the power-down process and damages the low-voltage equipment throughthe power supply self-protection. It avoids the possibility that the relay of the high-voltage system may be broken off by charging, which may cause the relay to adhere and lead to the vehicle failure. And by precharging, the power supply current of the high-voltage equipment is increased step by step, the current impact of the high-voltage equipment is reduced, and the high-voltage electric equipment is protected.
Description
technical field [0001] The invention relates to the field of unmanned vehicles, in particular to a power supply self-protection system and method for a hybrid vehicle. Background technique [0002] In order to realize unmanned driving of hybrid vehicles, various low-voltage and high-voltage equipment are often equipped on the vehicle. The low-voltage equipment is powered on and off at the same time, which will generate a relatively large impact current on the low-voltage circuit. Therefore, in order to protect the low-voltage and high-voltage circuit systems of hybrid unmanned vehicles, it is necessary to formulate appropriate power-on and power-off strategies. Contents of the invention [0003] In view of the above analysis, the present invention aims to provide a power supply self-protection system and method for a hybrid vehicle, which can effectively protect the power supply of a hybrid vehicle through a logic power-on process and a logic power-off process. [0004] 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): B60L3/00B60R16/023
CPCB60L3/00B60R16/023
Inventor 陈慧岩梁文利
Owner BEIJING INSTITUTE OF TECHNOLOGYGY