A method is provided to control a hybrid powertrain comprising engaging gears corresponding to a first gear pair connected with a first planetary gear in a gearbox with a first coupling device connecting two rotatable components in the first planetary gear; activating a second electrical machine to generate a propulsion torque on the output shaft via a second gear pair connected with a second planetary gear and the output shaft; disconnecting the first gear pair from the countershaft, by controlling the first electrical machine and a combustion engine connected with the first planetary gear to achieve a substantially zero torque state between the first gear pair; connecting the first gear pair to the countershaft, by controlling the combustion engine to achieve a synchronous rotational speed between the first gear pair; and activating the combustion engine and/or the first electrical machine to generate a propulsion torque on the output shaft.

A travel control system for a vehicle provided with a drive source, a wheel having a wheel body connected to the drive source via a power transmission member and a tire mounted on the wheel body, and a braking device for braking the wheel includes: an estimation unit configured to estimate a tire torsional stiffness and a road surface friction coefficient based on at least the rotation speed of the drive source, the rotation speed of the wheel body, the vehicle body speed, and the torque applied to the wheel body; and a control unit configured to control at least one of the drive source and the braking device such that the tire does not exceed an adhesion limit derived from the tire torsional stiffness and the road surface friction coefficient.

An exemplary braking method includes monitoring for an upcoming deceleration of an electrified vehicle, permitting an amount of regenerative braking if the upcoming deceleration is detected, and reducing the amount of regenerative braking if the upcoming deceleration is not detected.

An electrified fire fighting vehicle includes a battery pack, an electric motor, and a controller configured to operate the electric motor using stored energy in the battery pack to provide a performance condition including (i) accelerating the electrified fire fighting vehicle to a driving speed of at least 50 miles-per-hour in an acceleration time and (ii) maintaining or exceeding the driving speed for a period of time. The acceleration time is 30 second or less. An aggregate of the acceleration time and the period of time is at least 3 minutes.

A method of operating a first electric machine and a second electric machine in a vehicle drive includes operating the vehicle drive in: a first operating mode by operating the first electric machine in a voltage mode and the second electric machine in a torque mode; and a second operating mode by operating the first electric machine in the torque mode and the second electric machine in the voltage mode.

The disclosure includes a system and method for reconfiguring a vehicle based on one or more preferences of a first user without the first user directly providing an input to the vehicle to reconfigure the vehicle. The method may include wirelessly receiving first user profile data at a vehicle. The first user profile data may be associated with a first user. The first user profile data may describe how one or more settings of the vehicle should be configured for the first user. Upon receipt of the first user profile data, the vehicle may be configured in accordance with second user profile data describing how the one or more settings of the vehicle should be configured for a second user. The method may include reconfiguring the one or more settings of the vehicle based on the first user profile data so that the vehicle is reconfigured for the first user.

Disclosed herein are an emergency operating system and an emergency operating method for a hybrid vehicle with a damaged bearing of an engine, which are capable of preventing a bearing from being further damaged due to a drive motor and a hybrid starter and generator (HSG) when damage to the bearing installed in an engine is detected and capable of driving the hybrid vehicle and which include a bearing damage detection operation, an engine driving maintaining operation, a first state of charge (SOC) comparison operation, and a first emergency operating operation.

A hybrid propulsion system for a vehicle includes a battery for storing electrical energy, a power controller adapted to route electrical energy to and from the battery, a hybrid transaxle positioned between and interconnecting an engine and a first drive axle, the hybrid transaxle including a planetary gear set including a sun gear, planet gears rotationally supported on a carrier, and a ring gear, the carrier continuously connected to the engine, a first electric motor/generator continuously connected to the sun gear of the planetary gear set, final drive gears continuously connected to and interconnecting the ring gear of the planetary gear set to the first drive axle, and a second electric motor/generator selectively connectable to the final drive gears through an intermediary gearset having a single gear ratio.

A hybrid electric vehicle includes a control device that selectively executes a plurality of traveling modes. The control device can execute a process of acquiring a predicted traveling route, a process of specifying a required traveling energy required for traveling a specific section in an EV traveling mode, a process of setting a target value and at least one threshold value for the remaining battery charge amount, and a process of determining a traveling mode to be executed from among a plurality of traveling modes until the hybrid electric vehicle enters the specific section.

A fire fighting vehicle includes a chassis, tractive elements coupled to the chassis, a pump coupled to the chassis, a discharge fluidly coupled to the pump, an accessory module coupled to the chassis, and an electric motor coupled to the chassis, the pump, and the accessory module. The accessory module is configured to receive a mechanical energy input and provide at least one of electrical energy or fluid energy. The electric motor is configured to provide mechanical energy to drive (a) the pump to provide fluid to the discharge such that the fluid is expelled from the discharge and (b) the accessory module to provide the at least one of electrical energy or fluid energy.