Systems and methods are provided for controlling a hybrid powertrain of a hybrid vehicle, and may include: determining a value of a drive request for a combustion engine of the hybrid vehicle; determining electrical loading on batteries of the hybrid vehicle; adjusting operation of an accessory of the hybrid vehicle to reduce the electrical load of that accessory on the batteries of the hybrid vehicle when the drive request value is above a determined drive request threshold amount and the electrical loading on batteries of the hybrid vehicle is above a power loading threshold; and directing at least some of the power saved by adjusting operation of the accessory from the batteries of the hybrid vehicle to a drive motor of the hybrid vehicle to provide motive force for the vehicle.

A deterioration evaluation apparatus for a secondary battery, which evaluates a degree of deterioration of the secondary battery of a hybrid vehicle including an engine that outputs a driving power, a motor that outputs a driving power, and the secondary battery configured to exchange an electric power with the motor, includes one or more processors configured to evaluate the degree of deterioration of the secondary battery based on a first relationship. The first relationship is set by using an accelerator operation amount and an operation point. The operation point includes a rotation speed of the engine and a load factor of the engine. The first relationship is a relationship between the operation point and a load on the secondary battery when the engine is operated at the operation point.

In a torque-based detection process, a control device detects an excess acceleration state of a vehicle when a duration time of a state in which a value obtained by subtracting a required torque from an actual torque of an internal combustion engine is equal to or greater than a torque threshold value is equal to or greater than a torque determination time. In an acceleration-based detection process, the control device detects the excess acceleration state of the vehicle when a duration time of a state in which a value obtained by subtracting a required acceleration from an actual acceleration of the vehicle is equal to or greater than an acceleration threshold value is equal to or greater than an acceleration determination time.

Systems and methods for controlling engine brake disengagement in a vehicle include a controller receiving a signal indicative of a command to disengage an engine brake while the vehicle engine is in engine brake engaged condition. The engine can be subjected to a first negative torque under the engine brake engaged condition. The controller can cause the engine brake to be gradually disengaged over a time period using a predefined torque ramp rate, responsive to the signal. The gradual disengagement of the engine brake can be in the form of a phased out disengagement, and can reduce vehicle engine jerk associated with engine brake disengagement.

A hybrid vehicle includes a connecting/disconnecting clutch disposed between an engine and an electric motor, an automatic transmission including an input clutch, a starting clutch disposed between the electric motor and the automatic transmission, and a control apparatus for executing an engine-start control operation for starting the engine, by igniting the engine after increasing a rotational speed of the engine by a torque of the electric motor while placing the connecting/disconnecting clutch into an engaged state. In process of the engine-start control operation that is executed when the hybrid vehicle is in a stopped state with the starting clutch being in a released state, the control apparatus places the input clutch in an engaged state until the rotational speed of the engine exceeds a predetermined speed value, and switches the input clutch to a released state after the rotational speed of the engine has exceeded the predetermined speed value.

A moving machine control program causes a computer to execute: acquiring requested external force regarding an actuator; reading out a reference kinetic model that defines moving machine behavior exhibited when the actuator generates external force corresponding to the requested external force; calculating, as requested moving machine behavior, the moving machine behavior exhibited when the actuator generates the external force corresponding to the requested external force, in accordance with the reference kinetic model; measuring actual moving machine behavior during traveling of the moving machine; correcting the requested external force such that the actual moving machine behavior measured in the measuring step approaches the requested moving machine behavior calculated in the calculating step; and controlling the actuator based on the corrected requested external force.

A hybrid drive includes an internal combustion engine, an electrical machine, at least one torsional vibration damper, and an electronic control unit. The torsional vibration damper is designed for optimal vibration damping during operation of the internal combustion engine with the full number of cylinders of the internal combustion engine switched-on in internal-combustion-engine mode. The electronic control unit is further designed such that, in purely electric-motor mode where no cylinders are switched on, the electrical machine simulates the cylinder-ignition-dependent torque excitations of the switched-off internal combustion engine substantially identically until the internal combustion engine is switched back on.

A device for controlling driving of an electric four-wheel drive vehicle at the time of shift is provided. The device controls driving of an electric four-wheel drive vehicle to minimize energy loss occurring on a power transmission path during shift, thereby improving fuel efficiency.

A vehicle includes a chassis, an engine coupled to the chassis, a power source coupled to the chassis, and a track assembly. The track assembly includes an electric motor coupled to the chassis, a first drive wheel coupled to the electric motor and pivotally coupled to the chassis, a second drive wheel coupled to the engine and pivotally coupled to the chassis, and a track engaging the first drive wheel and the second drive wheel. The engine is configured to provide mechanical energy to the second drive wheel to drive the track and propel the vehicle. The electric motor is configured to receive electrical energy from the power source and provide mechanical energy to the first drive wheel to drive the track and propel the vehicle.

A control system for a hybrid vehicle configured to reduce fuel consumption. A controller is configured to execute a first determination to determine that a required power is less than a reference power, and a second determination to determine that a condition to start an engine is satisfied. If the answers of the first determination and the second determination are YES, a target power of the engine is set to a predetermined power which is greater than the required power, and which can be generated by consuming smaller amount of fuel. Then, the generator is driven by the engine being operated to achieve the predetermined power, and an electric power generated by the generator to be accumulated in a battery is set to a value calculated based on a difference between the target power and the required power.