Method for preventing belt-alternator starter generator (BSG) motor transmission belt in hybrid vehicle from slipping
A hybrid electric vehicle, BSG motor technology, applied in the field of preventing BSG motor transmission belt slipping in hybrid electric vehicles, can solve driving safety problems, sudden changes in driving torque or braking torque, driving and safety effects, etc. To achieve the effect of avoiding personal injury and property damage
Active Publication Date: 2017-05-24
GUANGZHOU AUTOMOBILE GROUP CO LTD
View PDF5 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Since the BSG motor is connected to the engine through a belt, it is easy to slip during the transmission of high torque, which will cause a sudden change in the driving torque or braking torque, causing serious drivability and even safety problems
If this problem cannot be paid attention to and solved, the drivability and safety may be greatly affected due to the anti-skid treatment of the BSG motor during high torque transmission.
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
[0025] The description of the following embodiments refers to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented.
[0026] Please refer to figure 1 Shown is a schematic diagram of the system architecture of the hybrid vehicle to which the present invention is applicable. The BSG motor is connected to the engine through a transmission belt, and the vehicle controller VCU is connected between the controller MCU of the BSG motor and the engine management system EMS. The invention detects the speed of the BSG motor and the engine through the vehicle controller VCU, and when the belt is about to slip, it limits the torque of the BSG motor to prevent the slip. If slip has occurred, the VCU coordinately controls the engine and the BSG motor to make the BSG motor torque decrease according to the preset curve, and at the same time, the engine is used to compensate for the decreasing torque of the BSG motor so that the torque outpu...
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 method for preventing a belt-alternator starter generator (BSG) motor transmission belt in a hybrid vehicle from slipping. Rotation speeds of a BSG motor and an engine are detected by a vehicle control unit VCU; and when detecting that the belt is going to slip, the slipping is prevented through limiting the torque of the BSG motor. If the belt slips, the engine and the BSG motor are controlled by the VCU in a coordinated manner, so that the torque of the BSG motor is lowered according to a preset curve; meanwhile, the lowered torque of the BSG motor is compensated by using the engine, so that the torque output to a wheel end is not affected.
Description
Technical field [0001] The invention relates to the field of new energy vehicles, in particular to a method for preventing the BSG motor transmission belt from slipping in a hybrid vehicle. Background technique [0002] As fuel consumption regulations become more and more stringent, reducing fuel consumption has become a top priority for all car manufacturers in research and development. Among these technologies, quick start-stop technology is recognized as one of the easiest technologies for mass production due to its acceptable cost and high fuel saving rate. [0003] The traditional 12V start-stop system has limited actual fuel-saving rate due to the limited battery motor power. The 48V system is an intermediate solution between the 12V start-stop system and the high-voltage hybrid system. By introducing a 48V start-stop motor and battery, it can achieve a longer shutdown and brake energy recovery than the 12V system, and the fuel saving rate can reach 10 %the above. In addit...
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 IPC IPC(8): B60W10/06B60W10/08
Inventor 肖恺王俊华贺辉魏丹裴锋
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD