Abstract: An object of the present invention is to provide a brake control apparatus including a backup brake, which brake control apparatus makes it possible both to ensure deceleration, and to attain vehicle running stability. The present invention includes: a front-wheel-side braking mechanism 4 that includes a front-wheel-side electric hydraulic mechanism 6, and a hydraulic circuit system, and applies braking force to front wheels 2L, and 2R; a rear-wheel-side braking mechanism 5 that applies braking on a rear wheel side; a backup brake that is actuated in accordance with a switch to the hydraulic circuit system 15 when the front-wheel-side electric hydraulic mechanism 6 fails, and applies braking force to the front wheels 2R, and 2L; and a skid determination threshold setting section 43 that sets a skid determination threshold.

Abstract: An excavator includes: a swing motor driven by oil from a swing pump coupled to a power take-off and driven by an engine; a first main oil passage connecting a first discharge port of the swing pump and a first suction port of the swing motor; a second main oil passage connecting a second discharge port of the swing pump and a second suction port of the swing motor; a neutral retention valve disposed in the first main oil passage and the second main oil passage and controlling passage of oil; a regenerative energy absorbing device coupled to the power take-off and absorbs regenerative energy generated by oil from the swing motor to the swing pump via a meter-out opening of the neutral retention valve; and a valve control section controlling an area of the meter-out opening based on a state of the regenerative energy absorbing device.

Abstract: An image forming apparatus includes a rotatable image bearing member and a rotatable developing member to carry developer made up of toner particles and carrier particles adhered to surfaces of the toner particles. Where a pressing force pressing the developing member against the image bearing member is F1, a total number of the carrier particles interposed between the toner particles and the image bearing member is N1, and an adhesion Ft between a carrier particle and a toner particle, measured when the carrier particle is pressed against the toner particle with F1/N1 that is a pressing force per unit carrier particle, and an adhesion Fdr1 between the carrier particle and the image bearing member, measured when the carrier particle is pressed against the image bearing member with F1/N1, satisfy Ft?Fdr1.

Abstract: An electric brake comprises a brake mechanism that transmits a thrust generated by driving an electric motor to a piston that moves brake pads pressed against a disc rotor; a thrust sensor that detects the thrust applied to the piston; a rotation angle sensor that detects a rotational position of the electric motor; and a rear electric brake ECU that controls the driving of the electric motor on the basis of a braking command. The rear electric brake ECU detects an abnormality in the brake mechanism from a detected value of the thrust sensor and a detected value of the rotation angle sensor in response to the braking command which are obtained when the electric motor is driven.

Abstract: An interlock system used in a high voltage system including a high voltage power supply in which a first voltage is a specified voltage and a plurality of high voltage system loads each connected to the high voltage power supply via a power supply line, the interlock system including: an acquisition unit that acquires information of a voltage applied to an own load from each of the high voltage system loads; and a control unit that controls a voltage of the power supply line, in which before activating the high voltage system, the control unit causes a second voltage lower than the first voltage to be output to the power supply line, and after the second voltage is output, when the acquisition unit has not acquired information that the second voltage is applied from all high voltage system loads, the control unit cancels activation of the high voltage system.

Abstract: Provided is a brake device capable of stabilizing a deceleration at the time of starting braking. The brake device is configured to correct a distribution of a braking force to each wheel or a braking force for each wheel, based on a detection value obtained by a load position distribution detection unit configured to detect a position distribution of a load applied to the vehicle when the vehicle is stopped or is in an initial period of starting.

Abstract: A rotary electric machine includes a stator including a coil, and a rotor in an inner peripheral side of the stator. The rotor core comprises a soft magnetic metal and a magnet within a magnet insertion hole, a first magnet stopper on a q axis side of the magnet in the magnet insertion hole, a magnet accommodation between the first magnet stopper on both sides of the magnet insertion hole, a first space portion communicating with the magnet insertion hole, a second space portion whose distance from the magnet is equal to or less than a thickness of the magnet and a radial length of a magnetic pole center is long, the second space portion formed on an inner peripheral side relative to the magnet, and a third space portion that has a convex shape on an inner peripheral side of a q axis of the magnet.

Abstract: A vehicle control device, a vehicle control method, and a vehicle suitable for an automatic/manual driving mode vehicle that employs brakes capable of controlling braking forces of four wheels. A vehicle control device including a pitch angle adjustment unit that adjusts a pitch angle, which is an inclination of a vehicle generated in the vehicle when braking the vehicle, or a change amount of the pitch angle, the pitch angle adjustment unit adjusting the pitch angle according to a traveling mode of the vehicle instructed by a host controller provided in the vehicle.

Abstract: A brake system capable of accurately controlling a braking force includes a first and second brake devices that have different control accuracies, and a brake control device that controls a braking force of the first and second braking devices according to a required braking force. The brake control device has a first control mode in which the braking force of the first brake device is controlled to be smaller than the braking force of the second brake device, and a second control mode in which the braking force of the first brake device is increased rather than the first control mode. The second brake device is controlled so that a sum of the braking force of the first brake device and the braking force of the second brake device matches the required braking force.

Abstract: An object of the present invention is to provide a brake control apparatus including a backup brake, which brake control apparatus makes it possible both to ensure deceleration, and to attain vehicle running stability. The present invention includes: a front-wheel-side braking mechanism 4 that includes a front-wheel-side electric hydraulic mechanism 6, and a hydraulic circuit system, and applies braking force to front wheels 2L, and 2R; a rear-wheel-side braking mechanism 5 that applies braking on a rear wheel side; a backup brake that is actuated in accordance with a switch to the hydraulic circuit system 15 when the front-wheel-side electric hydraulic mechanism 6 fails, and applies braking force to the front wheels 2R, and 2L; and a skid determination threshold setting section 43 that sets a skid determination threshold.

Abstract: An electric brake apparatus includes a brake mechanism, a parking mechanism, and a main ECU and rear electric brake ECUs. The main ECU performs re-holding control (re-clamping) of, after holding a braking force by the parking mechanism, releasing the holding of the braking force with the braking force applied or maintained and further applying the braking force, and then holding the braking force by the parking mechanism after that. In this case, the main ECU does not release the braking force on a rear right wheel until completing the re-holding control on a rear left wheel side. Alternatively, the main ECU does not release the braking force on the rear left wheel side until completing the re-holding control on the rear right wheel.

Abstract: An electric brake mechanism includes a piston (6D) propelled by a rotation-linear motion mechanism (8) driven by an electric motor (7A). The piston (6D) is configured to press brake pads (6C) against a disc rotor (4), and to hold the brake pads (6C) at a pressing position by stopping the electric motor (7A). A parking brake control device (24) is configured to determine, when a request (application command) to hold the brake pads (6C) is made, a judgment timing for judging whether to stop the electric motor (7A) based on a change trend of a current value of the electric motor (7A). When the judgment timing is reached, the parking brake control device (24) judges whether or not to stop the electric motor (7A).

Abstract: Provided is an electric brake including: a brake mechanism configured to transmit, based on a braking request, a thrust force generated through drive of an electric motor to a piston configured to move brake pads to be pressed against a disc rotor; and an ECU for rear electric brake configured to control the drive of the electric motor, and to move, in a non-braking state, the piston to a predetermined clearance position at which a clearance between each of the brake pads and the disc rotor is a predetermined amount. The ECU for rear electric brake is configured to drive the electric motor so that a period from generation of the braking request to a start of the pressing of the disc rotor by the brake pads is a predetermined period regardless of a position of the piston at a time when the braking request is generated.

Abstract: An auxiliary power supply apparatus is disposed on a power supply path from a main power supply apparatus to an electric power steering apparatus. The auxiliary power supply apparatus includes an auxiliary power supply that is a rechargeable power storage device, an on-off switch that is configured to selectively disconnect or connect the electric power steering apparatus and the auxiliary power supply from or to the main power supply apparatus, and an operation unit that is configured to operate the on-off switch. The operation unit is configured to switch the on-off switch from an ON state to an OFF state on a condition that a voltage supplied to the auxiliary power supply apparatus from the main power supply apparatus is less than or equal to a specified voltage reduction determination value and a vehicle speed is greater than a specified low vehicle speed determination value.

Abstract: A vehicle control device, a vehicle control method, and a vehicle suitable for an automatic/manual driving mode vehicle that employs brakes capable of controlling braking forces of four wheels. A vehicle control device including a pitch angle adjustment unit that adjusts a pitch angle, which is an inclination of a vehicle generated in the vehicle when braking the vehicle, or a change amount of the pitch angle, the pitch angle adjustment unit adjusting the pitch angle according to a traveling mode of the vehicle instructed by a host controller provided in the vehicle.

Abstract: A brake system capable of accurately controlling a braking force includes a first and second brake devices that have different control accuracies, and a brake control device that controls a braking force of the first and second braking devices according to a required braking force. The brake control device has a first control mode in which the braking force of the first brake device is controlled to be smaller than the braking force of the second brake device, and a second control mode in which the braking force of the first brake device is increased rather than the first control mode. The second brake device is controlled so that a sum of the braking force of the first brake device and the braking force of the second brake device matches the required braking force.

Abstract: An electric brake comprises a brake mechanism that transmits a thrust generated by driving an electric motor to a piston that moves brake pads pressed against a disc rotor; a thrust sensor that detects the thrust applied to the piston; a rotation angle sensor that detects a rotational position of the electric motor; and a rear electric brake ECU that controls the driving of the electric motor on the basis of a braking command. The rear electric brake ECU detects an abnormality in the brake mechanism from a detected value of the thrust sensor and a detected value of the rotation angle sensor in response to the braking command which are obtained when the electric motor is driven.

Abstract: Provided is a brake device capable of stabilizing a deceleration at the time of starting braking. The brake device is configured to correct a distribution of a braking force to each wheel or a braking force for each wheel, based on a detection value obtained by a load position distribution detection unit configured to detect a position distribution of a load applied to the vehicle when the vehicle is stopped or is in an initial period of starting.

Abstract: A parking brake control apparatus 20 drives an electric motor 43B to advance a piston 39 according to an application request signal from a parking brake switch 19. The parking brake control apparatus 20 includes a running state detection portion that calculates a running state about whether a vehicle is running or stopped based on a wheel signal from a wheel speed sensor 18. When the running state cannot be calculated by the running state detection portion, the parking brake control apparatus 20 controls the electric motor 43B in such a manner that the thrust force of the piston 39 changes at a lower time rate of change than when the running state can be calculated.

Abstract: A brake device having an electric parking brake function, capable of appropriately performing stepwise increase control for a clamping force. A control unit including a computing circuit (20), a memory (21), and each motor drive circuit (23) of a parking brake control device (19) includes a stepwise increase control unit configured to increase the clamping force generated by brake pads (33) to a disc rotor (4) in a stepwise manner. When start of contact between the disc rotor (4) and the brake pads (33) caused by feeding of power from the parking brake control device (19) to an electric motor (43B) is detected based on a motor current from a current sensor unit (24), the stepwise increase control unit performs control for repeatedly feeding and stopping power to the electric motor (43B) to increase the clamping force in a stepwise manner in accordance with a predefined processing procedure.