A method for measuring a slope angle of a vehicle includes, by a controller: determining whether or not a speed of the vehicle is 0 based on a speed signal received from a vehicle speed sensor of the vehicle; measuring an extremal value measured first, an extremal value measured second, and an extremal value measured third among extremal values of an output signal of an acceleration sensor detecting a signal corresponding to the slope angle of the vehicle when the speed of the vehicle is 0; verifying whether or not the measured three extremal values satisfy conditions of the extremal values based on reference conditions of each of the extremal values; estimating a steady state value of the output signal of the acceleration sensor, based on the extremal values measured first and second among the verified three extremal values and a dynamic characteristic parameter of the vehicle or based on the verified three extremal values; and converting the steady state value into the slope angle of the vehicle. The output signal of the acceleration sensor has a damped free vibration waveform.

An embodiment vehicle includes a tailgate, a tailgate opening and closing device, a travelling device, an object detection sensor, and a controller configured to, in response to receiving an opening signal for the tailgate while the vehicle is parked, determine a distance to an obstacle located at a rear of the vehicle based on an output of the object detection sensor, and in response to the distance being greater than or equal to a predetermined dangerous distance, control the tailgate opening and closing device to open the tailgate, or in response to the distance being less than the predetermined dangerous distance, control the travelling device to move the vehicle by a predetermined movement distance in a reverse direction of a parking path and control the tailgate opening and closing device to open the tailgate after the vehicle moves by the predetermined movement distance.

A method for stopping of a motor vehicle including providing a creep torque via a drive train of the motor vehicle and then increasing, independently of the driver, engine speed of a drive engine of the drive train to increase a drive torque of the drive engine and simultaneously increasing, independently of the driver, a braking torque of a brake system of the motor vehicle to balance the drive torque and the braking torque of the motor wherein the maximum braking torque is as great as the creep torque during a standstill of the motor vehicle. The method then maintains the braking torque and simultaneously reduces the engine speed of the drive engine to point at which the motor vehicle comes to a standstill. In an alternative embodiment the method includes applying, independently of the driver, a braking torque by a brake system of the motor vehicle, wherein the applied braking torque is as great as the creep torque present when the motor vehicle is at a standstill and then maintaining the braking torque and simultaneously reducing the creep torque of the drive train up to a point at which the motor vehicle comes to a standstill.

A method of decreasing vibration during release of a stop gear of a vehicle can be applied to an eco-friendly vehicle for decreasing vibration generated when a driver releases a P step of a gear lever while torsion occurs in a drive shaft of the vehicle. Reaction force torque of a driving motor is controlled so as to output reaction force that has been generated in a parking sprag by a driving motor when torsion occurs in the drive shaft after entrance of the gear lever into the P step, so as to decrease vibration generated because torsion reaction force of the drive shaft vanishes at the same time.

A control device for a hybrid vehicle, includes a travel route creation unit creating a travel route from a starting point to a destination through a stopping point by referring to map information; a parking time period estimation unit estimating a parking time period of the hybrid vehicle at the stopping point; a travel load prediction unit predicting a traveling load of the hybrid vehicle in each of sections obtained by dividing the travel route by referring to the map information; and a travel mode setting unit setting, for each of the sections, a traveling mode of an EV mode, in which the battery provides power for traveling as a main power supply, or an HV mode, in which the internal combustion engine provides the power for traveling as the main power supply, on the basis of the parking time period and the traveling load.

An electronic control device automatically stops an engine operation when a remaining electric power amount index value is equal to or larger than an engine stop permission threshold. The device automatically restarts the engine operation when the remaining electric power amount index value is smaller than an engine restart threshold after the engine operation is automatically stopped. The device changes the engine stop permission threshold from a first threshold, which has been set until a start of an activation of an electric actuator, to a second threshold, which is larger than the first threshold, when the automatic engine stop is not carried out and the activation of the actuator is detected.

A regeneration control apparatus which controls a regenerative braking force of an electric motor for driving an electric motor vehicle includes: a regeneration operation unit operated by a driver to select magnitude of the regenerative braking force stepwise from selection stages; a default operation unit operated by the driver to change the magnitude of the regenerative braking force to one of the selection stages which has been set as a default stage; a detection unit detecting an operation state on the regeneration operation unit during a learning period; and a default stage changing unit, when one of the selection stages whose selection frequency is highest during the learning period is different from one of the selection stages which has been currently set as the default stage, changing the default stage to another selection stage.

When a use index indicative of a degree of use of external charging is less than a threshold, an electronic control unit determines that the degree of use of external charging is low, and executes a charging guide control to promote the use of external charging at the time of parking at a battery charging point, such as at home or in a battery charging station, where the external charging is performable. Hereby, it is possible to promote a driver to use external charging at the time of parking at the battery charging point. As a result, the use of external charging can be promoted.

An auto stop-start equipped vehicle power management system includes a primary power source supplying energy to an electrical starter to crank a vehicle engine and a secondary power source coupled in parallel to the primary power source. The secondary power source supplies energy to electric loads during an engine auto stop-start operation. The electrical loads maintain vehicle subsystem functionality during the engine auto stop-start operation. The energy supplied to the electrical loads is current limited during the engine auto stop-start operation. A controllable switch decouples the secondary power source from the primary power source and starter motor during the engine auto stop-start operation. Operating parameters of the electrical loads are monitored during the engine auto stop-start operation. If a respective operating parameter threshold associated with the electrical loads is exceeded during the engine auto stop-start operation, then the vehicle engine is automatically restarted and the controllable switch is subsequently closed.

A controller that controls driving of an autonomously moving vehicle includes a first sensor that detects an obstacle and a direction of travel of the vehicle, and a processor that sets a virtual region surrounding the vehicle. Processor stops the vehicle when the obstacle is detected therein, determines whether the obstacle is present in the direction of travel, determines whether the vehicle has been stopped for a predetermined amount of time when the obstacle is present, reduces a length of the virtual region in the direction of travel to provide an adjusted virtual region when the vehicle is determined to have been stopped for the predetermined amount of time, causes the vehicle to drive when the obstacle is not detected within the adjusted virtual region, and stops the vehicle when the obstacle is detected within the adjusted virtual region.