A motor control device controls driving of a motor, which outputs torque to a rack shaft as a load by rotation of a shaft fixed to a rotor. The motor control device has a rotation stress check unit for determining a rotation stress indicating a rotation stress, which is applied inversely from the load to a protection target member such as a shaft, bearing and oil seal related to the rotation of the shaft or torque transmission to the load. The rotation stress check unit determines the rotation stress is excessive based on that an absolute value of a rotation evaluation value exceeds a stress threshold value. The stress threshold value is set to be larger than an absolute value of an upper limit value realized in normal drive control.

The present disclosure relates to a method for a torque control of a hybrid vehicle, a storage medium and an electronic device. The method includes: determining a target-total-torque-change-gradient when a limitation requirement for a gradient of torque change of a DCT is received; determining a torque request of an electric motor and an actual-torque-response-change-gradient of an engine; and determining a gradient of torque change of the electric motor according to the target-total-torque-change-gradient and the actual-torque-response-change-gradient of the engine; and filtering the torque request of the electric motor according to the gradient of torque change of the electric motor. The limitation of the gradient of torque change of the DCT is considered, A problem that the actual total torque responses of the electric motor and the engine exceeds the limitation requirement of the gradient of torque change of the DCT is effectively solved, and a drivability of the whole vehicle is improved.

A hybrid vehicle control method controls a hybrid vehicle. In this control method, a rotational speed command value for a power generation system is determined in accordance with a state of a drive system, a torque command value is determined for the power generation system such that the rotational speed of the power generation system reaches the rotational speed command value, a damping control is performed to suppress a characteristic vibration component generated in a connection between the engine and the power generator to calculate a final torque command value for the power generation system, and the torque command value is set as the final torque command value without performing the damping control upon determining a system resonance can occur that is caused by vibration of a component different from the characteristic vibration component.

Systems and methods for operating a hybrid vehicle during an end of assembly line test are presented. In one example, torque of an integrated starter/generator (ISG) is adjusted so that the ISG may not affect engine data that is collected during end of assembly line engine testing. The collected engine data may be a basis for adapting engine operation.

At least some embodiments of the present disclosure are directed to systems and methods of online power management for hybrid powertrains. In some embodiments, the hybrid powertrain control system is configured to conduct a brake-thermal-efficiency (BTE) estimation procedure when the powertrain is in operation by operating the hybrid powertrain at a plurality of speeds for a plurality of designated power levels and select certain BTE operating conditions to update the power management.

A control device performs upshifting in a state in which an operating point of a rotating electrical machine for outputting requirement-based torque at wheel-based rotational speed falls within an operable range of the rotating electrical machine both before and after shifting a shift speed by the upshifting, and in which before shifting the shift speed, output torque from the rotating electrical machine is less than or equal to determination torque (T1), the wheel-based rotational speed being rotational speed of the rotating electrical machine based on rotational speed (V) of a wheel, the requirement-based torque being output torque from the rotating electrical machine based on required wheel transmission torque, and the determination torque (T1) being torque obtained by subtracting an amount of increased torque (ΔTmg) resulting from torque increase control from maximum torque (Tmax) that can be outputted from the rotating electrical machine at the wheel-based rotational speed.

Systems and methods for operating a driveline of a hybrid vehicle are described. In one example, a torque of an engine is adjusted in response to an error between an actual electric machine torque and a minimum electric machine torque plus an offset torque. The reduction of engine torque may be performed when a driveline is operating in a speed control mode.

A sudden acceleration prevention method for a vehicle includes the following steps, which may be performed by a controller: monitoring an output signal of an accelerator pedal sensor so as to obtain a detected operation state of an accelerator pedal, determining whether the detected operation state of the accelerator pedal is within a predetermined brake pedal operation range, determining whether the detected operation state of the accelerator pedal is within a predetermined accelerator pedal and brake pedal overlapping operation range if the detected operation state of the accelerator pedal is within the predetermined brake pedal operation range, and outputting an output reduction control signal of the vehicle if the detected operation state of the accelerator pedal is not within the accelerator pedal and brake pedal overlapping operation range.

A control device may be configured for responding to failure for ensuring the stability of a vehicle by switching from a two-wheel-drive mode to a four-wheel-drive mode when detecting failure of the brake system in a two-wheel-drive mode.

A powertrain for a vehicle may include a motor; a planetary gear set mounted to rotate parallel to a rotation shaft of the motor so that one rotation element may exchange power with the motor; a front wheel driveshaft engaged to the planetary gear set to receive power from another rotation element of the planetary gear set and to transfer a rotating force to a front wheel coupled to the front wheel driveshaft; and a rear wheel driveshaft engaged to the planetary gear set and mounted to receive power from the other rotation element of the planetary gear set to rotate parallel to the rotation shaft of the motor, and to transfer a rotating force to a rear wheel coupled to the rear wheel driveshaft.