A vehicle and method for controlling a vehicle having a traction battery and an internal combustion engine include adapting a power limitation of the internal combustion engine by sensing a currently supplied power level of the internal combustion engine and a current velocity of the vehicle, sensing an ambient temperature of the vehicle and determining an associated ambient-temperature-related weighting factor, sensing an ambient air pressure and determining an associated air-pressure-related weighting factor, determining a thermal load indicator as a function of a ratio of the sensed currently supplied power and the sensed current velocity as well as of the ambient-temperature-related weighting factor, the air-pressure-related weighting factor, and a vehicle-bodywork-related weighting factor, and limiting a maximum supplied power level of the internal combustion engine as a function of the determined thermal load indicator.

A hybrid vehicle includes an engine, a first motor, a planetary, the first motor, and a drive shaft, such that the first motor, the engine, and the drive shaft are arranged in this order in a collinear diagram, a second motor configured to be connected to the drive shaft, a power storage device configured to exchange an electric power with the first motor and the second motor. A braking force is applied to a vehicle by motoring the engine, in which fuel injection is stopped, by the first motor and/or regenerative driving of the second motor, when an accelerator is not operated. Motoring of the engine, in which fuel injection is stopped, by the first motor is limited, in a case where a deposition amount of particulate matter deposited on the filter is equal to or higher than a predetermined amount, when an accelerator is not operated.

An operating strategy optimized for dynamic requirements for 48V drive systems of MHEV.

An HV-ECU performs processing including calculating requested system power, calculating requested engine power when an engine activation request has been issued, obtaining a turbo temperature, setting an operating point on a predetermined operating line when the turbo temperature is equal to or lower than a threshold value Ta, setting as the operating point, a position on a higher rotation speed side by a predetermined value along an equal power line when the turbo temperature is higher than the threshold value Ta, carrying out engine control, and carrying out MG control.

A vehicle includes a power source configured to provide drive torque, a front axle, a rear axle, and a transfer case configured to distribute drive torque from the power source between the front axle and the rear axle. The vehicle additionally includes a clutch arranged between the front axle and the transfer case. The clutch has a disengaged state and an engaged state drivingly coupling the transfer case and the front axle. The vehicle also includes a regenerative braking system configured to, in response to a braking request, provide regenerative braking torque to the rear axle. The vehicle further includes a controller. The controller is configured to, in response to a braking request and the clutch being in the disengaged state, control the clutch to shift into the engaged state to couple the regenerative braking system to the front axle and provide regenerative braking torque to the front axle.

A drive apparatus of a hybrid vehicle including a first and second rotors arranged movably in axial direction so as to separate from or approach each other, and a microprocessor. The microprocessor is configured to perform selecting a drive mode from among drive modes including a first mode in which the engine drives a planetary gear mechanism, a second mode in which the engine is stopped, and a third mode in which the engine is driven through the planetary gear mechanism, and controlling a first motor-generator and a clutch mechanism so that the first motor-generator generates regenerative energy when the drive mode is switched from the first mode to the second mode, and then so that the clutch mechanism is engaged and the first motor-generator generates drive torque when the drive mode is switched to the third mode.

A vehicle control device mounted on a four-wheel drive vehicle including a driving force transmission system includes an electronic control unit. The electronic control unit calculates a command torque based on vehicle information. The electronic control unit estimates a temperature of a heat generating location in the driving force transmission system based on the command torque. The electronic control unit estimates the temperature of the heat generating location based on an estimated value of a driving force input to an input rotating member, when it is not possible for the driving force corresponding to the command torque to be transmitted to auxiliary drive wheels due to a magnitude of the driving force generated by a drive source or occurrence of a wheel slip.

Methods and systems of power management in a hybrid vehicle are disclosed. A control system of the hybrid vehicle obtains battery temperature and catalyst temperature. The control system determines (a) whether the battery temperature is within an optimal battery temperature range and (b) whether the catalyst temperature is within an optimal catalyst temperature range. The control system determines a power split ratio (PSR) based on the determination of (a) and (b). The control system controls the engine and the motor-generator based on the determined PSR.

A method of controlling a propulsion system inverter includes identifying at least one route characteristic of a portion of a route being traversed by a vehicle. The method further includes Receiving at least one inverter characteristic. The method further includes generating a target thermal profile of the propulsion system inverter corresponding to thermal fatigue associated with the at least one thermal characteristic. The method further includes generating a signal to selectively instruct the adjustment of at least one of the vehicle speed control input, a torque demand corresponding to the vehicle speed control input, and the portion of the route based on the target thermal profile of the propulsion system inverter to improve inverter life.

A transmission is subject to thermal management to prevent damage or failure due to overheating. Sensors can be employed to capture characteristics of a transmission, such as fluid temperature or pressure. Further, a predictive model can be invoked to predict characteristics based on current and future conditions. Characteristics can be compared with a threshold for intervention. A thermal mitigation strategy can be generated and initiated when characteristics satisfy the threshold. The thermal mitigation strategy can specify various actions to dissipate heat, including altering shift control logic and triggering mechanical devices that can increase airflow, reduce air temperature, or both surrounding the transmission.