Abstract: A motion manager for a vehicle, includes one or more processors configured to: receive motion requests from a plurality of applications, one or more of the applications being travel applications for controlling at least one of an acceleration of the vehicle or a steering angle of the vehicle, and another one or more of the applications being human-machine interface (HMI) applications for implementing transfer of information from the vehicle to an occupant; perform arbitration of the motion requests that have been received; when the motion requests have been received from the HMI applications, calculate the instruction information based on a different type arbitration result obtained by arbitrating the motion requests from the HMI applications and the result of the arbitration of the motion requests from the travel applications; and output the calculated instruction information to a control device for the actuator.

Abstract: Provided is a brake control apparatus configured to: set a target slip degree of each of three wheels other than an outer front wheel to a slip degree of the outer front wheel; perform feedback control so that an actual slip degree of each of the three wheels becomes close to the target slip degree; and decrease a feedback control amount of a wheel which is to be controlled to increase an anti-spin yaw moment when an understeer suppression condition is satisfied.

Abstract: A braking control device for a vehicle includes a malfunction detector configured to detect a malfunction of a first stroke sensor or a second stroke sensor, a memory configured to store a first stroke and a second stroke, a stroke calculator for first calculation configured to calculate, from the first stroke and the second stroke, an average value for calculating a target deceleration before a malfunction is detected by the malfunction detector, a stroke calculator for second calculation configured to calculate, from the average value and the second stroke (first stroke), an additional value for calculating the target deceleration after the malfunction is detected, and a target deceleration setting circuit configured to set the target deceleration from the average value or the additional value.

Abstract: A brake control device is applied to a brake device that controls a front-wheel braking force and a rear-wheel braking force. The brake control device includes a ratio calculation circuit that calculates a target front and rear braking force distribution ratio based on a target pitch angle, and a brake control circuit that performs a stability control by operating the brake device based on the target front and rear braking force distribution ratio during braking.

Abstract: A brake ECU sets target slippage degrees of three wheels other than the front outer wheel to the slippage degree of the front outer wheel and feedback-controls the braking forces of the three wheels such that the actual slippage degrees of the three wheels approach the target slippage degrees. The brake ECU computes a correction amount for the slip ratio deviation of the front inner wheel such that the slip ratio deviation becomes zero. The brake ECU multiplies the correction amount for the slip ratio deviation by a load ratio and uses the resultant value as a correction amount for the slip ratio deviation of the rear inner wheel. The brake ECU corrects the slip ratio deviation by using the computed correction amount.

Abstract: A brake device includes a second setting unit that sets a target wheel deceleration of at least one of the wheels to which a target wheel brake force; detection units that detect the actual wheel deceleration of the wheel to which the target wheel deceleration; a first calculation unit that calculates a vehicle deceleration difference which is the difference between the target vehicle deceleration and the actual vehicle deceleration; a second calculation unit which calculates a wheel deceleration difference which is the difference between the target wheel deceleration and the actual wheel deceleration; and a correction unit which corrects, on the basis of the vehicle deceleration difference and the wheel deceleration difference, the target wheel brake force corresponding to at least one of the wheels to which the target wheel brake force is set so that the vehicle deceleration difference becomes smaller.

Abstract: The braking control device generates braking force by operating an electric motor to press a friction member against a wheel-fixed rotary member. The braking control device includes: a wheel speed sensor detecting wheel speed; a rotation angle sensor detecting a motor rotation angle; a drive circuit driving the motor; and a controller controlling the drive circuit. The controller sets a current limit circle within d-axis/q-axis current characteristics of the motor based on specifications of the drive circuit, calculates a voltage limit circle within the d-axis/q-axis current characteristics based on the rotation angle, executes slip suppression control for reducing the degree of wheel slip based on the wheel speed, calculates d-axis and q-axis target current values based on intersection points of the current limit circle and the voltage limit circle when execution of slip suppression control begins, and controls the drive circuit based on the d-axis and q-axis target current values.

Abstract: A hydraulic pressure braking force generation device is provided with a first control unit for performing control for inhibiting excessive responses in which the input pressure is controlled such that the output pressure is within a first region set using a braking target oil pressure as a reference, a second control unit for performing control for responsiveness in which the increase speed or decrease speed of the input pressure is increased so as to be larger than that in the control for inhibiting excessive responses, to cancel response delay and a switching unit which, on the basis of the state of the braking target oil pressure, switches between the control for inhibiting excessive responses performed by the first control unit and the control for responsiveness performed by the second control unit.

Abstract: The hydraulic pressure control device controls a valve part for adjusting the inflow/outflow of a fluid into and out of a hydraulic pressure chamber formed in a braking device to control the actual hydraulic pressure of the fluid in the hydraulic pressure chamber, to a target hydraulic pressure of the actual hydraulic pressure and includes a determination unit which determines whether a response delay time of the actual hydraulic pressure is equal to or greater than a prescribed permitted delay time and an inflow/outflow quantity correction unit which executes increase correction processing in which the valve part is controlled to increase the inflow/outflow quantity of the fluid in the hydraulic pressure chamber when the determination unit has determined that the response delay time is equal to or greater than the permitted delay time.

Abstract: Provided is a vehicle brake control device which is capable of suitably executing brake assistance processing, even if a sensor for detecting the pressure inside a variable-pressure chamber of a vacuum booster is not provided. A brake device is provided with: a vacuum booster for assisting an operation force inputted to a brake pedal; a master cylinder which generates MC pressure Pmc corresponding to the assisted operation force; wheel cylinders which are provided to wheels, and in which WC pressure is increased as the MC pressure Pmc is increased; and a brake actuator capable of adjusting the WC pressure. When it is determined that emergency braking is requested, a control device of the brake device sets, as the assistance limit pressure, the MC pressure Pmc at that point in time, and operates the brake actuator, to execute brake assistance processing for assisting WC pressure increase.

Abstract: A vehicle brake device provided with a hydraulic pressure generating portion, an actuator and a controlling portion which maintains a driving force of the driving portion when a control subject pressure in a control subject chamber is within a dead zone, wherein the control subject pressure varies in response to a variation of the master pressure and a pulsation is generated in the master pressure accompanying an operation of the actuator. The vehicle brake device further includes a rigidity information obtaining portion which obtains a rigidity information and a dead zone setting portion which sets the dead zone based on the rigidity information obtained by the rigidity information obtaining portion such that the higher the rigidity of the control subject chamber, or the higher the probability of rigidity increase of the control subject chamber, the wider the dead zone is set.

Abstract: A motion control device for a vehicle, including a braking means for applying a brake torque to a wheel of the vehicle and maintaining a traveling stability of the vehicle by controlling the braking means, the motion control device for the vehicle, includes a steering angular velocity obtaining means for obtaining a steering angular velocity of the vehicle, a yaw angular acceleration obtaining means for obtaining a yaw angular acceleration of the vehicle, and a control means for controlling the brake torque on the basis of the steering angular velocity and the yaw angular acceleration.

Abstract: A brake temperature detection device is configured detect brake temperature more accurately. In a situation in which the temperature in the vicinity of the brake has risen above the atmospheric temperature, indicated by a value read off of the detection signal of the temperature sensor, for example when traveling in congested traffic, a value to correct atmospheric temperature is determined, and atmospheric temperature is corrected on the basis of that atmospheric temperature correction value. Subsequently, brake temperature is calculated on the basis of the corrected air temperature. As a result of this configuration, it is possible to have the calculated brake temperature approach the actual brake temperature. This makes it possible to detect brake temperature more accurately.

Abstract: To improve vehicle stability by starting control based on quicker detection of the possibility that a vehicle state will reach an unstable region. It is detected that a vehicle is in a pre-skid state that is the state prior to when the vehicle reaches an unstable region where skid occurs, and brake force is generated in a rear wheel at an outside of a turn when the pre-skid state is detected. As a result of generating this brake force, load applied to the wheels at the outside of the turn increases and lateral force of the vehicle increases. Thus, it is possible to make it more difficult for skid of the vehicle to occur, and so it is possible to inhibit, in advance, gentle deterioration in vehicle behavior such as slow spin. Accordingly, the possibility that a vehicle state has reached an unstable region can be detected earlier.

Abstract: In a vehicle brake device, when a brake pedal is depressed normally, high regeneration efficiency and high fuel efficiency can be achieved by positively utilizing the regenerative braking force, and early applying of basic hydraulic braking force can be achieved when the brake pedal is suddenly depressed. The vehicle brake device includes an operation force transmitting mechanism on a connecting member between the brake pedal and the master cylinder piston and having first and second rods and a spring member biasing the first and second rods in a direction separating both rods from each other. The operation force transmitting mechanism includes an inner space between both rods and a communication passage allowing communication of the inner space with the exterior. The communication passage restricts the outflow of fluid in the inner space upon an emergency brake pedal depression and allows the outflow thereof upon non-emergency brake pedal depression.

Abstract: A vehicle motion control apparatus configured to control a plurality of control objects in a same direction of vehicle motion control to achieve a requested control amount is provided. The vehicle motion control apparatus includes a control object selection unit which is configured to determine priority of the control objects used for the vehicle motion control based on a priority determination condition, to select a control object from among the plurality of control objects. The control object selection unit includes a control object selection timing determination section configured to detect a change in the priority determination condition, and cause the control object selection unit to reselect a control object at a timing of the change detection as a selection timing.

Abstract: In a vehicle brake device, a port is provided at a hydraulic chamber of a master cylinder and communicates with a reservoir tank. A piston movable in the hydraulic chamber for closing the port is provided with at least one piston-side port that faces on the port when at a first position. When a brake pedal is stepped on from a retracted state to move the piston from the first position to a second position spaced from the first position by a predetermined distance, the hydraulic chamber is blocked from the communication with the reservoir tank. The at least one piston-side port is provided therein with an orifice, so that the hydraulic pressure in the hydraulic chamber is raised at the time of a quick stepping of the brake pedal but is allowed to flow to the reservoir tank without being raised at the time of a non-quick stepping.

Abstract: A pressure control reservoir includes a valve ball and a shaft which is movable to move the valve ball to open or close a fluid path leading to a fluid reservoir chamber. The shaft has a tip with a slant surface which has a peripheral edge of a polygonal shape with even numbers of vertices and is inclined to the longitudinal center line of the shaft. Such a polygonal geometry increases an entire or inclined length of the slant surface, which results in an increased range where an angle which the slant surface makes with a plane extending perpendicular to an axial direction of the tip is permitted to be increased without causing the point of contact between the valve ball and the slant surface to be shifted close to the tip of the slant surface when the tip of the shaft moves the valve ball.

Abstract: A vehicle brake system comprises a master brake cylinder having an input piston and master piston and connected to a wheel brake device, a reaction force generating device for generating a reaction force pressure corresponding to a displacement amount of the input piston, a change over valve provided in an open passage branched from a hydraulic conduit connecting the reaction force generating device to the reaction force chamber defined by the input piston and the change over valve connected to a reservoir, a brake force boosting device for applying an assisting pressure to a master piston, an assisting pressure limit judging portion for judging whether the assisting pressure has reached to an assisting limit pressure, and a change over controlling portion for changing over the change over valve to an open state when the assisting pressure limit judging portion judges that the assisting pressure has reached the assisting limit pressure.

Abstract: A vehicle dynamic control apparatus is designed to control a plurality of controlled objects according to a request value of a first parameter from an application associated with motion of a vehicle in a same direction to fulfill the request value of the first parameter. An availability obtainer obtains an availability corresponding to a controllable range of a second parameter of each of the plurality of controlled objects, the second parameter being associated with motion of the vehicle in the same direction. A selector determines an order of the plurality of controlled objects to be controlled based on the availability of the second parameter of each of the plurality of controlled objects, and selects at least one of the plurality of controlled objects to be controlled in accordance with the determined order.