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.

A vehicle travel assist device installed on a vehicle includes: a vehicle travel control device that controls travel of the vehicle; and a travel state acquisition device that acquires travel state information indicating a travel state of the vehicle. The vehicle travel control device: detects that a first wheel of the vehicle climbs over a difference-in-level, based on the travel state information; acquires a first driving force required for the first wheel to climb over the difference-in-level or a change in the travel state when the first wheel passes the difference-in-level, as reference information, based on the travel state information; estimates a second driving force required for a second wheel of the vehicle to climb over the difference-in-level, based on the reference information; and generates the estimated second driving force when the second wheel passes the difference-in-level after the first wheel.

Method for operating a motor vehicle with a hybrid drive, which includes an internal combustion engine connected to an exhaust system of the motor vehicle along with at least one traction electric motor, which is operated via an electric energy accumulator of the motor vehicle and can be coupled to the internal combustion engine, wherein the motor vehicle can be moved via the internal combustion engine and/or the traction electric motor, wherein when movement of the motor vehicle via the internal combustion engine is switched to movement of the motor vehicle solely via the traction electric motor, and the internal combustion engine is decoupled from the traction electric motor, operation of the internal combustion engine is continued, dependent upon at least one piece of exhaust system information describing a condition of the exhaust system.

When an abnormality associated with power transmission in a power transmission path which is formed such that power of an engine or the like is able to be transmitted to driving wheels has occurred and a vehicle speed is equal to or higher than a predetermined vehicle speed, a limp-home travel control unit switches a limp-home travel mode to a first limp-home travel mode in which the power of the engine or the like is able to be transmitted to the driving wheels through the power transmission path. When an abnormality associated with power transmission in the power transmission path has occurred and the vehicle speed is lower than the predetermined vehicle speed, the limp-home travel control unit switches the limp-home travel mode to a second limp-home travel mode in which limp-home travel is performed using power of a second electric motor.

A vehicle drive route instruction system in a hybrid vehicle in which when it is judged that currently the vehicle is driving through the inside of the engine drive restriction zone where driving by the internal combustion engine is restricted, the internal combustion engine is made to stop operating, the electric motor is used to drive the vehicle, and the shortest route from the current position to the boundary of the inside of the engine drive restriction zone and the outside of the engine drive restriction zone is searched. When it is judged that the SOC amount will fall to the preset judgment standard when driving the vehicle through the searched shortest route from the current position to the boundary, an occupant of the vehicle is given information to guide the vehicle from the current position through the searched shortest route to the boundary.

The control device of a hybrid vehicle for controlling a hybrid vehicle includes a position estimating part configured to estimate a position of the hybrid vehicle using the vehicle position detection device, a reliability calculating part configured to calculate a reliability of position information of the hybrid vehicle, and a power output part configured to control the internal combustion engine and the electric motor to output power for driving use. The power output part is configured to reduce the output of the internal combustion engine when the reliability is equal to or less than a reference value, compared to when the reliability is higher than the reference value.

A vehicle brake control apparatus includes a vibration detector configured to detect a predetermined vibration state in a frictional brake device, a power regeneration execution determination unit configured to determine, in a case where the predetermined vibration state is detected by the vibration detector, whether to permit execution of power regeneration by a power generating device or to limit the execution, a pressing force controller configured to change, in a case where the execution of the power regeneration is limited by the power regeneration execution determination unit, a pressing force of a friction material in the frictional brake device, and a driving force cooperative controller configured to adjust a driving force of a vehicle to suppress fluctuation in forward acceleration or backward acceleration of the vehicle associated with a change in the pressing force by the pressing force controller.

A vehicle driving apparatus for a vehicle with wheels includes an engine, a transmission mechanism, an input shaft, a power generation motor, and a motor clutch. The transmission mechanism is disposed between the engine and the wheels. The input shaft is disposed between the engine and the transmission mechanism and coupled to a crank shaft of the engine via a damper mechanism. The power generation motor is disposed between the engine and the transmission mechanism and includes a hollow rotor through which the input shaft extends. The motor clutch is switched between an engaged state and a released state. When being the engaged state, the motor clutch couples the input shaft and the hollow rotor. When being in the released state, the motor clutch releases coupling between the input shaft and the hollow rotor.

A controller, responsive to accelerator pedal release and a speed of the vehicle being less than a threshold, operates an electric machine to provide braking torque according to a predetermined speed versus time profile that defines a predetermined duration for the speed to become zero and a target speed for each time instant during the predetermined duration such that, for a given one of the time instants, the electric machine increases the braking torque responsive to the speed being greater than the target speed and decreases the braking torque responsive to the speed being less than the target speed.

A method for operating a vehicle that includes an internal combustion engine that may be automatically stopped and started is described. In one example, selection of an engine starting device is based on a value of an engine starting torque reserve. The engine starting torque reserve may be dynamically adjusted so that life spans of engine starting devices may meet expectations.