Disclosed in the present disclosure is a vehicle energy saving control method, comprising: switching a multi-power switch to a corresponding gear position according to an actual load value and a load threshold; obtaining road information of a corner ahead when the vehicle is driving, wherein the road information comprises a curvature radius; calculating equivalent mass according to the curvature radius, total mass, a speed of the vehicle and a road friction coefficient; determining a predicted gear position according to the sum of the actual load value and the equivalent mass; and switching the multi-power switch to the predicted gear position if the predicted gear position is different from the current gear position. The present disclosure can solve the problem of energy waste caused by the power output mismatch when the vehicle passes the corner.

Disclosed in the present disclosure is a vehicle energy saving control method, comprising: switching a multi-power switch to a corresponding gear position according to an actual load value and a load threshold; obtaining road information of a corner ahead when the vehicle is driving, wherein the road information comprises a curvature radius; calculating equivalent mass according to the curvature radius, total mass, a speed of the vehicle and a road friction coefficient; determining a predicted gear position according to the sum of the actual load value and the equivalent mass; and switching the multi-power switch to the predicted gear position if the predicted gear position is different from the current gear position. The present disclosure can solve the problem of energy waste caused by the power output mismatch when the vehicle passes the corner.

Disclosed in the present disclosure is a vehicle energy saving control method, comprising: switching a multi-power switch to a corresponding gear position according to an actual load value and a load threshold; obtaining road information of a corner ahead when the vehicle is driving, wherein the road information comprises a curvature radius; calculating equivalent mass according to the curvature radius, total mass, a speed of the vehicle and a road friction coefficient; determining a predicted gear position according to the sum of the actual load value and the equivalent mass; and switching the multi-power switch to the predicted gear position if the predicted gear position is different from the current gear position. The present disclosure can solve the problem of energy waste caused by the power output mismatch when the vehicle passes the corner.

A vehicle control device controls a vehicle drive system including a main motor as a drive source of a vehicle, a parking lock mechanism, and an actuator. The vehicle control device includes an actuator drive control section that controls a drive of the actuator, a main motor drive control section that controls a drive of the main motor, and a range determination unit that determines whether or not a shift range is a parking range. When releasing the parking lock, if the parking range is not released within a parking range release determination time that is variable according to an operating environment, the main motor drive control section performs a meshing surface pressure reduction control for driving the main motor so as to reduce a meshing surface pressure between a parking gear and a parking lever.

A vehicle control device controls a vehicle drive system including a main motor as a drive source of a vehicle, a parking lock mechanism, and an actuator. The vehicle control device includes an actuator drive control section that controls a drive of the actuator, a main motor drive control section that controls a drive of the main motor, and a range determination unit that determines whether or not a shift range is a parking range. When releasing the parking lock, if the parking range is not released within a parking range release determination time that is variable according to an operating environment, the main motor drive control section performs a meshing surface pressure reduction control for driving the main motor so as to reduce a meshing surface pressure between a parking gear and a parking lever.

A transmission includes an input shaft and an output shaft, the input shaft selectively accepting a torque input from a prime mover, and the output shaft selectively providing torque output to a driveline. A controller determines a shaft displacement angle representing an angle value of rotational displacement difference between at least two shafts of the transmission, and performs a transmission operation responsive to the shaft displacement angle.

In a control unit of a hydraulic control device, a workload calculation unit calculates the amount of workload cut in a first pump when supply of first oil from the first pump to a continuously variable transmission mechanism through a check valve is switched to supply of second oil from a second pump to the continuously variable transmission mechanism. A workload determination unit determines whether the amount of workload loss of an ACG is more than the amount of workload cut. A motor controller stops a motor or decreases a rotation number if the workload determination unit determines that the amount of workload loss is more than the amount of workload cut.

A method for actuating a parking lock of a motor vehicle including a piston (10) which is arranged to move axially within a cylinder (9) of a parking lock actuator (8) and is acted upon by pressure in order to disengage the parking lock. A nominal pressure target, for disengaging the parking lock, is continuously increased from a first pressure value (p.sub.start) until the parking lock is either disengaged or until a maximum pressure value (p.sub.max) is reached.

An apparatus of estimating a vehicle weight may include: an acceleration detector detecting a longitudinal direction acceleration of the vehicle; a data detector detecting state data to estimate the vehicle weight; an engine clutch disposed between an engine and a drive motor and selectively connecting the engine to the drive motor; an integrated starter-generator for starting the engine and generating electric energy; and a vehicle controller calculating a basic vehicle weight based on an engine torque, a motor torque and the longitudinal direction acceleration detected by the acceleration detector. The vehicle controller estimates a final vehicle weight based on the basic vehicle weight and a predetermined weight when an estimating entrance condition is satisfied from the state data.

An apparatus of estimating a vehicle weight may include: an acceleration detector detecting a longitudinal direction acceleration of the vehicle; a data detector detecting state data to estimate the vehicle weight; an engine clutch disposed between an engine and a drive motor and selectively connecting the engine to the drive motor; an integrated starter-generator for starting the engine and generating electric energy; and a vehicle controller calculating a basic vehicle weight based on an engine torque, a motor torque and the longitudinal direction acceleration detected by the acceleration detector. The vehicle controller estimates a final vehicle weight based on the basic vehicle weight and a predetermined weight when an estimating entrance condition is satisfied from the state data.