A limp home mode drive method and system for a hybrid vehicle are provided. The method includes prohibiting an operation of an overdrive brake that is included in a transmission for the hybrid vehicle and is driven by an electric oil pump when the hybrid vehicle is being driven and the electric oil pump is not operated. A speed of the hybrid vehicle is then limited based on a heat value of a rotation driver included in the transmission and a torque of a drive motor driving the transmission is limited based on a temperature of the drive motor. A mechanical oil pump included in the hybrid vehicle is operated to enable limp home driving of the hybrid vehicle.

A control method and apparatus of a hybrid vehicle are provided. The control method includes determining whether the speed of a motor exceeds a first threshold value, when supply of power to a battery is cut off and thus the hybrid vehicle is driven by an engine. The speed is then adjusted to be the first threshold value or less, when the speed exceeds the first threshold value.

A control device for a vehicle includes an electronic control unit. The electronic control unit is configured to set a share ratio of driving force of the first electric motor and the second electric motor. The electronic control unit is configured to set the share ratio of the driving force such that when the temperature of a pinion gear in a planetary gear mechanism is higher than a specified temperature, the share ratio of the driving force of the first electric motor is lower than the share ratio when the temperature is lower than the specified temperature.

A method for controlling a multi-axle work vehicle based on axle loading may generally include monitoring a load associated with loads transmitted through a pivot pin of a track assembly of the work vehicle, wherein the track assembly is configured to be rotatably coupled to an engine of the work vehicle via an axle assembly. In addition, the method may include estimating an axle load applied through the axle assembly based on the monitored load and providing a control output for the work vehicle based on the estimated axle load

A method for automatically controlling vehicle speeds of a track-based work vehicle may include monitoring, with a computing device, a load transmitted through a pivot pin of a track assembly of the work vehicle and determining, with the computing device, a speed limit setting for the work vehicle based on the monitored load, wherein the speed limit setting is associated with maintaining an operating temperature of a track of the track assembly below a predetermined temperature threshold. In addition, the method may include automatically limiting, with the computing device, a vehicle speed of the work vehicle based on the determined speed limit setting.

A vehicle includes a transmission, a motor, and at least one controller. The motor is configured to be selectively coupled to the transmission. The at least one controller is programmed to output a fault for a coil temperature sensor of the motor based on an oil temperature of the transmission, a phase current of the motor, and a temperature change in a coil of the motor.

An electronic control unit executes control such that a ratio of driving force output from a second motor in requested driving force when a hybrid vehicle travels in a charge depleting mode becomes larger than the ratio when the hybrid vehicle travels in a charge sustaining mode switched from the charge depleting mode by a mode selector switch. As a result, it becomes possible to suppress overheating of the second motor while cooling a first motor. When the mode selector switch is operated to select the charge depleting mode again, the second motor has already been cooled, so that performance of the second motor can sufficiently be demonstrated without a driving restriction due to overheating being imposed thereon. And, it becomes possible to suppress overheating of the second motor while achieving enhanced energy efficiency of the vehicle.

Limiting torque of a motor to avoid its overheating results in switching to engine-driven traveling, thus leading to lower fuel efficiency, which is a problem. FIG. 5(D) shows the torque of the motor 1. When finding that the difference ΔEm between the power consumption rates is larger than the threshold EmT calculated by using the section distances d1 and d2, the power consumption calculation unit 18 sets a temperature threshold for torque limitation on the motor 1 to a low value so as to prevent the motor 1 from overheating. In other words, when the fuel efficiency improvement effect in the second section is large, the torque in the first section is limited. As a result, the motor 1 is limited in its torque in the first section p-f1, which makes the first section p-f1 a hybrid traveling section where the vehicle is driven by the motor 1 and the engine 2. Meanwhile, the second section f1-f2 is a traveling section where the vehicle is driven by the motor 1 only. In this manner, overheating of the motor is suppressed in the gradient-climbing traveling section as stable motor-driven traveling is performed in the section that follows the gradient-climbing traveling section and that offers a high fuel efficiency improvement effect. This improves the fuel efficiency.

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 brake control device for a vehicle includes: a motor connected to wheels; a hydraulic brake that generates a friction braking force based on frictional contact with a brake rotor that integrally rotates with the wheels; a controller that performs coordination control of regenerative brake control, in which a regenerative power generation is performed by the motor on a basis of rotation of the wheels to apply a regenerative braking force to the wheels, and hydraulic brake control, in which the hydraulic brake is operated; and a battery that exchanges power with the motor. Further, in a case where a temperature of the brake rotor is higher than a predetermined temperature when input to the battery is restricted in a state where there is a deceleration request, the controller reduces the friction braking force, and performs the regenerative brake control while power is consumed by an electric device.