发明名称 Control strategy for AWD connection and disconnection
摘要 The invention relates to switching between 2WD and 4WD of a vehicle. It is suggested to increase output power of an engine (106) when changing to 4WD. An AWD coupling (120) is opened, if not already open. To provide 4WD, a PTU clutch (108) is engaged once engine power has increased. The other couplers are sequentially engaged.
申请公布号 US9598067(B2) 申请公布日期 2017.03.21
申请号 US201314408285 申请日期 2013.03.12
申请人 Eaton Corporation 发明人 Chimner Christian Thomas;Grogg John Allen
分类号 B60W10/02;B60W10/119;B60W10/16;B60K23/08;B60W50/08;B60W10/06;B60W30/182;B60W30/192 主分类号 B60W10/02
代理机构 Mei & Mark LLP 代理人 Mei & Mark LLP
主权项 1. A computer program product comprising a tangible memory device and a program stored on the tangible memory device, the program being readable and executable by a processor, the program comprising instructions for making connections in a vehicle driveline comprising the steps of: receiving, at the processor, a request to convert a vehicle from a single drive axle-powered driveline to a two drive axle-powered driveline; iteratively receiving, at the processor, sensor data from sensors, the sensor data comprising data indicating vehicle dynamics and current engine power; processing the received sensor data to determine vehicle dynamics and current engine power; determining an additional amount of engine power required to convert the second drive axle from an idled condition to a powered condition to covert the vehicle from the single drive axle-powered driveline to the two drive axle-powered driveline; sending, from the processor, a command to open at least one coupler in the second drive axle; sending, from the processor, a command to increase engine power by the determined additional amount; processing sensor data to indicate that the engine power has increased by the determined additional amount; sending, from the processor, in response to the indication that the engine power has increased by the determined additional amount, a command to engage a power transfer unit to connect the single drive axle to the second drive axle; receiving, at the processor, a signal that the power transfer unit is engaged; and sending, from the processor, a command to close the at least one coupler.
地址 Cleveland OH US