Abstract: A method for vehicle-to-vehicle communication is disclosed. The method includes establishing a communication connection between the first vehicle and the second vehicle, receiving one or more communications from the second vehicle, determining, by the first vehicle, vehicle parameter targets based on the one or more communications, communicating the vehicle parameter targets and one or more vehicle device commands to the second vehicle, and determining at least one vehicle control signal for the second vehicle based on the vehicle parameter targets and the one or more vehicle device commands.

Abstract: A method for shifting between a low speed range and a high speed range for a two-speed transfer case in a four-wheel drive vehicle includes determining a target transmission gear ratio and a desired transfer case range based on the current vehicle speed and the initial transfer case range. The transmission is shifted to the target transmission gear ratio when it is determined that the vehicle speed is in an appropriate range. The transfer case input torque is reduced to a minimum value, and the transfer case is shifted to neutral. The method further includes adjusting the engine speed and transmission gear setting to control the transmission output shaft speed to a desired range. The transfer case is shifted from neutral to the desired transfer case range when the transmission output shaft speed is within the desired range of transmission output shaft speed.

Abstract: A method for vehicle-to-vehicle communication is disclosed. The method includes establishing a communication connection between the first vehicle and the second vehicle, receiving one or more communications from the second vehicle, determining, by the first vehicle, vehicle parameter targets based on the one or more communications, communicating the vehicle parameter targets and one or more vehicle device commands to the second vehicle, and determining at least one vehicle control signal for the second vehicle based on the vehicle parameter targets and the one or more vehicle device commands.

Abstract: A method for shifting between a low speed range and a high speed range for a two-speed transfer case in a four-wheel drive vehicle includes determining a target transmission gear ratio and a desired transfer case range based on the current vehicle speed and the initial transfer case range. The transmission is shifted to the target transmission gear ratio when it is determined that the vehicle speed is in an appropriate range. The transfer case input torque is reduced to a minimum value, and the transfer case is shifted to neutral. The method further includes adjusting the engine speed and transmission gear setting to control the transmission output shaft speed to a desired range. The transfer case is shifted from neutral to the desired transfer case range when the transmission output shaft speed is within the desired range of transmission output shaft speed.

Abstract: A method for testing the application of a torque converter clutch in vehicle having an electronic control unit and a driveline system including an engine, a transmission, a torque converter operating to transfer engine torque to the transmission, a torque converter clutch having an applied state, and a solenoid to change the commanded apply state of the clutch. The test includes determining the state of the solenoid, determining the applied state of the clutch, commanding a change in the applied state of the clutch, and determining the time for the clutch to change applied state.