A clutch mechanism is configured to selectively change between a first power transmission path and a second power transmission path. The first power transmission path is configured to transmit torque to an output shaft via a transmission mechanism. The second power transmission path is configured to transmit the torque to the output shaft via a continuously variable transmission mechanism. An electronic control unit is configured to: (a) selectively change a power transmission path during traveling to one of the first power transmission path and the second power transmission path by controlling the clutch mechanism; and (b) in changing the power transmission path by controlling the clutch mechanism, control an operating point of the internal combustion engine during a change of the power transmission path so that the operating point crosses over an optimum fuel, consumption line of the internal combustion engine.

An electronic control unit controls a motor so that a torque applied to an input shaft does not exceed an upper limit torque. The electronic control unit sets so as to restrict the upper limit torque from a first torque to a second torque smaller than the first torque, and then return the upper limit torque to the first torque more gradually when a first condition that a driver is assumed to have felt a decrease in driving force output to driving wheels is met before the upper limit torque is returned than when the first condition is not met.

A system for destructive braking system for an autonomous truck traveling on a roadway includes an electronic control unit (ECU) configured for controlling a transmission for the autonomous truck. The destructive braking system includes a processing system communicatively coupled to the ECU, the processing system including a processor coupled to a memory. The memory stores executable instructions that, upon execution by the processor, configure the processor to receive an indication the autonomous truck will unavoidably collide with an object. The processor is further configured to determine to employ destructive braking. The processor is further configured to instruct the ECU to reverse the transmission to reduce momentum of the autonomous truck.

A system for destructive braking system for an autonomous truck traveling on a roadway includes an electronic control unit (ECU) configured for controlling a transmission for the autonomous truck. The destructive braking system includes a processing system communicatively coupled to the ECU, the processing system including a processor coupled to a memory. The memory stores executable instructions that, upon execution by the processor, configure the processor to receive an indication the autonomous truck will unavoidably collide with an object. The processor is further configured to determine to employ destructive braking. The processor is further configured to instruct the ECU to reverse the transmission to reduce momentum of the autonomous truck.