Abstract: A shift range control apparatus includes: an idling determination portion that determines, based on a motor angle and an output shaft angle, an end of an idling state in which a motor is rotating within a range of a play, the motor angle being a value based on a detected value of a motor rotation angle sensor that detects the rotation of the motor, the output shaft angle being a value based on a detected value of an output shaft sensor that detects rotation of the output shaft; and a target value setting portion that sets a motor angle target value for drive control of the motor using a corrected angle value that is a value corresponding to the motor angle at an end of an idling.

Abstract: A control apparatus for a motor generator in a vehicle includes a first control unit that determines a target torque using a redundant signal and a non-redundant signal, a monitoring unit that determines a monitoring target torque using the redundant signal, and a fail-safe determining unit. The fail-safe determining unit determines the execution of first fail-safe processing when a difference between the target torque and the monitoring target torque is equal to or more than a predetermined first upper limit threshold value or equal to or less than a first lower limit threshold value, and determines the execution of second fail-safe processing when the difference is equal to or more than a predetermined second upper limit threshold value which is smaller than the first upper limit threshold value or equal to or less than a second lower limit threshold value which is smaller than the first lower limit threshold value.

Abstract: A shift range control apparatus switches shift range by controlling the drive of a motor. The shift range control apparatus includes a feedback controller that is configured to perform position feedback control based on a target angle determined corresponding to the request shift range and the actual angle of the motor; a stationary phase energization controller that is configured to perform stationary phase energization control that energizes a stationary phase selected corresponding to an actual angle; and a switching controller that switches between motor control states. The switching controller switches the control state to position feedback control when the request shift range is switched. When the difference between the target angle and the actual angle becomes equal to or less than an angle determination threshold value, the switching controller switches the control state from position feedback control to the stationary phase energization control.

Abstract: A shift range control apparatus switching a shift range by controlling a drive of a motor, the shift range control apparatus includes: an idle running determiner that is configured to determine whether a rotation state of the motor is an idle running state in which the motor rotates within a range of play existing between a motor shaft being a rotation shaft of the motor and an output shaft to which a rotation of the motor is transmitted; and a current limiter that is configured to limit a current of the motor when it is determined that the rotation state of the motor is the idle running state.

Abstract: A rotational angle sensor detects the rotational position of a motor and outputs a motor rotational angle signal corresponding to the rotational position of the motor. An output shaft sensor detects a change in the magnetic field of a target that rotates integrally with an output shaft to which the rotation of the motor is transmitted, and outputs an output shaft signal according to the rotational position of the output shaft. A shift range control unit includes a motor control unit.

Abstract: A shift range control device switches a shift range by controlling driving of a motor. A learning unit learns, as a position correction value, a normal state time correction value calculated based on at least one of a first reference angle and a second reference angle when at least one output shaft signal is available at a time of turning on of a start switch. The first reference angle is a motor angle at timing when the output shaft signal changes in response to the rotation of the motor in a first direction. The second reference angle is the motor angle at timing when the output shaft signal changes in response to the rotation of the motor in a second direction opposite to the first direction. A target setting unit sets a motor angle target value by using the normal state time correction value stored in a storage unit during a period from when all the output shaft signals are determined to be unavailable to when the start switch is turned off.

Abstract: A shift range control device switches a shift range by controlling driving of a motor in a shift range switching system, in which a play exists between a motor shaft which is a rotation shaft of a motor and an output shaft to which the rotation of the motor is transmitted. A parameter calculation unit calculates a motor angle, a motor speed and a motor acceleration based on a motor rotation angle signal acquired from a motor rotation angle sensor which detects a rotation position of the motor. An idling check unit checks an end of idle rotation, in which the motor rotates within a range of the play, based on the motor speed and the motor acceleration. A target setting unit sets a motor angle target value related to drive control on the motor, by using an angle correction value which is a value corresponding to the motor angle at the end of the idle rotation. A drive control unit controls the driving of the motor such that the motor angle becomes the motor angle target value.

Abstract: A brake control device is a control device for a vehicle used in a vehicle on which the shift-by-wire system and the brake-by-wire system are mounted. A function of automatically operating the brake device without an operation of the driver of the vehicle is referred to as a BBW automatic operation function, and a request by the driver for disabling the BBW automatic operation function is referred to as a disabling request. A brake control device includes a disabling determination part configured to determine a presence or absence of the disabling request, the vehicle stop determination part configured to determine whether the vehicle is stopped, a slope determination part configured to determine whether the vehicle is located on a slope, and a BBW automatic operation part. The BBW automatic operation part operates the brake device when the vehicle is stopped on the slope even if the disabling request is made.

Abstract: The present disclosure may provide a shift range control apparatus that controls on-off operations of switching elements in a driver circuit, drives a motor, and switches a shift range. The shift range control apparatus may be configured to determine an abnormality of a rotation angle sensor detecting a rotation angle of the motor, to control a drive of the motor using a detection value, and to execute a control which switches an energization phase every energization phase switching period without using the detection value of the rotation angle sensor in response to that the rotation angle sensor is abnormal.

Abstract: A parking brake control device is a control device for a vehicle used in a vehicle on which a shift by wire system and an electric parking brake system are mounted. A function of automatically operating an electric parking brake without an operation of the driver of the vehicle is referred to as an EPB automatic operation function, and a request by the driver for disabling the EPB automatic operation function is referred to as a disabling request. The parking brake control device includes a disabling determination part configured to determine a presence or absence of the disabling request, a vehicle stop determination part configured to determine whether the vehicle is stopped, a slope determination part configured to determine whether the vehicle is located on a slope, and an EPB automatic operation part. The EPB automatic operation part operates the electric parking brake when the vehicle is stopped on the slope even if the disabling request is made.

Abstract: A shift range control device switches a shift range by controlling the driving operation of a motor in a shift range switching system. The shift range control device includes a drive control unit, a stop control unit, and a return control unit. The drive control unit drives the motor so that an engagement member engages in one of recess portions corresponding to a requested shift range. The stop control unit stops the motor at a target position corresponding to the requested shift range. When the requested shift range corresponds to one of both ends of multiple recess portions, the return control unit returns the rotation position of the motor after the motor stops at the target position.

Abstract: A shift range control device switches a shift range by controlling the driving operation of a motor. When a difference between a target angle at which the motor is to be stopped and an actual angle becomes smaller than an angle determination threshold, the shift range control device switches from a feedback control to a control with a fixed duty. When the motor reverses, the shift range control device switches from the control with the fixed duty to a stationary phase energization control for energizing a stationary phase of the motor.

Abstract: A shift range control device switches a shift range by controlling the driving of a motor. An angle calculation unit acquires a motor rotation angle signal outputted from a motor rotation angle sensor that detects the rotation position of the motor, and calculates a motor angle. A signal acquisition unit acquires an output shaft signal, which is outputted from an output shaft sensor for detecting the rotation position of an output shaft through which the rotation of the motor is transmitted. A value of the output shaft signal changing in steps in accordance with the rotation position of the output shaft. A target setting unit sets a motor angle target value by correcting, in accordance with a speed of the motor at the timing at which the acquired output shaft signal changes, a pre-correction motor angle target value that is set on the basis of a target shift range and a change point at which the output shaft signal changes.

Abstract: A shift range control device includes an angle calculation unit, a target angle setting unit, a learning unit and a drive control unit. The learning unit learns a correction value to be used in calculating a motor angle target value based on a motor angle and an output shaft signal. The learning unit learns the correction value based on at least a first change point value, which is the motor angle at a timing at which the output shaft signal changes when a rotation member rotates in a first direction from a state in which an engagement member is in the center of valley section, and/or a second change point value, which is the motor angle at a timing at which the output shaft signal changes when the rotation member rotates in a second direction from a state in which the engagement member is in the center of the valley section.

Abstract: An output shaft receives transmission of a driving force of a motor. A valley forming member has valley portions correspondingly to shift ranges and rotates integrally with the output shaft. An engaging member is biased with a biasing member in a direction to be fitted to a valley portion and is configured to be fitted to a target valley portion, which is a valley portion corresponding to a target shift range. The motor control unit performs a control to drive the motor. The motor shaft, which is a rotary shaft of the motor, and the output shaft have a play therebetween. The motor control unit determines a motor target position to locate the engaging member at a position shifted by a predetermined amount before the center of the target valley portion in the driving direction.

Abstract: A shift range control device switches a shift range by controlling driving of an actuator. A plurality of control units are configured to control the driving of the actuator. A plurality of monitoring control units are correspondingly provided for the plurality of control units, and configured to monitor the corresponding control units. The driving of the actuator is controlled by one of the control units, which is in a normal state. When an abnormality occurs in the one of the control units being used to control the driving of the actuator, the one is switched to another one of the control units to control the driving of the actuator.

Abstract: A shift range switching control device for switching a shift range by controlling driving of a motor includes a feedback control section, a stationary phase energization control section, and a switching control section. The feedback control section performs a feedback control based on an actual angle of the motor, and a motor speed. The stationary phase energization control section performs a stationary phase energization control which energizes a stationary phase selected according to the actual angle. The switching control section switches the control state of the motor.

Abstract: A shift range control device, mounted on a vehicle for switching a shift range by controlling a driving operation of a motor, includes: feedback controller; a feedback value setting unit; a current sensor; and a current correction unit. The feedback controller performs a feedback control based on an actual angle of the motor and a motor speed as a rotational speed of the motor. The feedback value setting unit sets a feedback value of the motor speed to advance a phase of the motor speed, based on the motor speed. The current sensor detects a motor current which flows through the motor. The current correction unit estimates a temperature of the motor based on the motor current, and corrects a target motor speed which is a target speed of the motor determined based on a request shift range.

Abstract: A shift range control apparatus switching a shift range by controlling a drive of a motor, the shift range control apparatus includes: an idle running determiner that is configured to determine whether a rotation state of the motor is an idle running state in which the motor rotates within a range of play existing between a motor shaft being a rotation shaft of the motor and an output shaft to which a rotation of the motor is transmitted; and a current limiter that is configured to limit a current of the motor when it is determined that the rotation state of the motor is the idle running state.

Abstract: A shift range control apparatus switches shift range by controlling the drive of a motor. The shift range control apparatus includes a feedback controller that is configured to perform position feedback control based on a target angle determined corresponding to the request shift range and the actual angle of the motor; a stationary phase energization controller that is configured to perform stationary phase energization control that energizes a stationary phase selected corresponding to an actual angle; and a switching controller that switches between motor control states. The switching controller switches the control state to position feedback control when the request shift range is switched. When the difference between the target angle and the actual angle becomes equal to or less than an angle determination threshold value, the switching controller switches the control state from position feedback control to the stationary phase energization control.