Abstract: An electronic control unit which includes: a sensor board to which a sensor for detecting a predetermined physical quantity is attached; a control board which controls an operation of an electric part based on the physical quantity detected by the sensor; and a housing which accommodates the sensor board and the control board, wherein the housing has a first room for accommodating the electric part, a second room for accommodating the sensor board and the control board in a stacked condition, and a partition portion for separating the first room and the second room from each other, wherein a recess which is opened to the second room is formed in the partition portion, and a sensor accommodating portion for accommodating the sensor is formed using the recess.

Abstract: One embodiment discloses a vehicle disc brake including: a disc rotor; a pair of friction pads disposed on both side portions of a disc rotor; and a pads returning spring suspended over radially outer sides of the friction pads and over an outer circumferential side of the disc rotor and configured to pull the friction pads away from the disc rotor when brakes are released and hydraulic pressure is removed. The pads returning spring has a base portion extending in an axial direction of the disc rotor, first spring portions extending from both end portions of the base portion, and engagement portions provided individually at distal ends of the first spring portions so as to engage with the friction pads. Further, a middle portion of the base portion is depressed in a direction in which the first spring portions extend as a second spring portion.

Abstract: A connecting portion 4f to which a pushrod actuating mechanism 7 is connected is provided on an opposite side, to a disc rotor 5, of a bottom wall of a cylinder bore 4e of a caliper body 4 so as to project therefrom. An accommodation bore 4m that accommodates a pushrod 12 and an adjusting bolt 18 is formed in the connecting portion 4f. In forming the caliper body 4, the connecting portion 4f is formed so as to have the same section shapes when taken along a direction perpendicular to an cylinder axial direction. By cutting the connecting portion 4f so that a length of the connecting portion 4f in the cylinder axial direction becomes a predetermined length and processing the connecting portion 4f, a connecting surface 4n to which the pushrod actuating mechanism 7 is connected is formed on the connecting portion 4f.

Abstract: Brake hydraulic pressure is appropriately prevented from becoming lower than a reference brake pressure for holding control. When a physical amount correlating with the rotational speed of an electric motor has become higher than or equal to a predetermined value, an HSA start reference pressure setting unit sets an HSA start reference pressure to a value higher than a reference brake pressure, and if the HSA start reference pressure at a time when a driver required fluid pressure has become lower than the HSA start reference pressure is higher than the reference brake pressure, an HSA required fluid pressure setting unit sets an HSA required fluid pressure at a time when the driver required fluid pressure has become lower than the HSA start reference pressure to a value higher than the reference brake pressure.

Abstract: A reserve tank is fixed to the vehicle body with a bracket. The bracket includes a supporting member supporting an intermediate part which is an intermediate part in vertical direction when the reserve tank is fixed to the vehicle body side. The supporting member includes the vertical movement restricting part for restricting a vertical movement while the reserve tank is fixed to the vehicle. The reserve tank includes the fastening part fastened with the fastening member to a fastened part formed on the bracket, the rotation restricting part for restricting, at a location apart from the fastening part, rotation on the fastening part, and an extending part protruding outwardly in a diametrical direction from a side surface of the reserve tank and extending from a side of the fastening part in a circumferential direction to the rotation restricting part.

Abstract: A support structure for a vehicle is interposed between a vehicle body and a vehicle part and is connected with fastening members to support the vehicle part. The support structure is made of a non-ferrous light alloy. Among connecting surfaces of the support structure to which the vehicle body and the vehicle part are connected, an electrochemical corrosion inhibitor is applied to a connecting surface that is located on a lower side, in a vertical direction of the vehicle, of one of the vehicle body and the vehicle part. The one of the vehicle body and the vehicle part corresponds to the applied connecting surface.

Abstract: One embodiment provides a vehicle brake hydraulic controller including a wheel speed acquiring section; a wheel deceleration calculator; a vehicle velocity calculator; and a locking tendency determination section. The vehicle velocity calculator calculates a vehicle deceleration based on a temporary vehicle deceleration corresponding to an acceleration sensor value and calculates a vehicle velocity based on the calculated vehicle deceleration. The vehicle velocity calculator calculates the temporary vehicle deceleration by offsetting a first correction amount to a deceleration side in relation to the acceleration sensor value. When a brake pedal operation amount by a driver is equal to or smaller than a first threshold and that an absolute value of the wheel deceleration is equal to or larger than an absolute value of a second threshold are met, the first correction amount is set to be smaller than when the conditions are not met.

Abstract: In a pendular motion determination unit of a motion stabilizer for a tractor, a parameter computation unit computes a determination parameter PA indicative of a quantity of change in an actual yaw rate Y, a threshold value setting unit computes a threshold value PAth for the parameter PA, and a determination unit determines that a pendular motion caused by swaying motion of a trailer is imparted, if the parameter PA is greater than the threshold value PAth. Based upon at least one of a value related to the actual yaw rate Y and a value related to the standard yaw rate Ys, an evaluation value computation unit computes a steering-back maneuver evaluation value TS (indicative of a possibility of making periodical steering-back maneuvers), based upon which at least one of the threshold value PAth and the parameter PA is changed.

Abstract: A primary molded body having an angled connector that is integrally connected to an insulating annular body provided in a stator of a motor section, and that has a plurality of terminals extending along an axial direction of the motor section; a through-hole that is formed in the primary molded body and runs through the angled connector from an interior of the insulating annular body; a secondary molded body that is molded so as to cover the primary molded body; a secondary molded connector that is formed in the secondary molded body and covers the angled connector; and a connector opening that is formed in the secondary molded connector and communicates with the through-hole, wherein an outlet of the through-hole communicates with the connector opening.

Abstract: A fluid pressure booster for a braking device includes a control piston on which an input brake operation acts in an advancing direction, and a reaction force based on fluid pressure of a booster fluid pressure generation chamber acts in a retracting direction. A pressure increasing valve is provided between a valve chamber communicating with a fluid pressure generation source and the booster fluid pressure generation chamber. A pressure reducing valve is provided between a release chamber communicating with a reservoir and the booster fluid pressure generation chamber. At least one contraction portion is formed between an outer periphery of a front portion of the pressing rod and an inner periphery of a front portion of a valve seat member.

Abstract: An embodiment provides a vehicle brake hydraulic pressure controller capable of carrying out a brake hydraulic pressure control in a plurality of control modes depending on a situation of a vehicle. The vehicle brake hydraulic pressure controller includes: proportional solenoid valves provided in passages connecting a master cylinder and wheel brakes of the vehicle, and configured to be controlled at preset drive frequencies; a control mode selecting section configured to select, in the case that two or more control modes are requested simultaneously, one of the two or more requested control modes; and a frequency selecting section configured to select one of the drive frequencies correspondingly with the one of the two or more requested control modes selected by the control mode selecting section.

Abstract: A master cylinder apparatus A1 includes a master cylinder 1 and a reservoir 3. The master cylinder 1 transduces an input to a brake operator into a brake fluid pressure. The reservoir 3 includes a fluid supply hole 3a that is connected to the master cylinder 1. A base body 10 of the master cylinder 1 includes a first cylinder hole 11a into which a piston is inserted, a reservoir union port 13a to which the fluid supply hole 3a is connected, and a communication hole 13d. The communication hole 13d has one end opening in a bottom surface of the reservoir union port 13a, and the other end opening in an inner circumferential surface of the first cylinder hole 11a. A center axis O3 of the reservoir union port 13a passes through a position being apart from a center axis O1 of the first cylinder hole 11a.

Abstract: A vehicle rear wheel lift tendency judgment device: includes a first deceleration obtaining device for obtaining a first deceleration along a first straight line, being a component in a first direction of an acceleration on a center of gravity, and a second deceleration obtaining device for obtaining a second deceleration along a second straight line, being a component in a second direction of the acceleration; judges that a rear wheel tends to be lifted, when the first deceleration is greater in the first direction than a first threshold, or when the second deceleration is greater in the second direction than a second threshold; and performs at least one of setting for shifting the first threshold in a direction opposite to the first direction and setting for shifting the second threshold in a direction opposite to the second direction, when a second-deceleration change rate being a change amount in the second deceleration per unit time becomes greater in the second direction than a change-rate threshold, en

Abstract: A vehicle brake hydraulic pressure control apparatus includes an adding section and a control differential pressure setting section. The adding section adds a feedback differential pressure obtained by executing a PI operation in accordance with a yaw rate deviation which is a difference between a target yaw rate being set to a value at which a vehicle turns to a higher coefficient-of-friction road side and an actual yaw rate and a feedforward differential pressure obtained by adding (i) a differential pressure based on a steering angle and (ii) a differential pressure based on a velocity of a vehicle body and the target yaw rate. The control differential pressure setting section sets a control differential pressure based on a value obtained by the adding section, after a predetermined time elapses since start of differential pressure control.

Abstract: A brake fluid pressure control device for a vehicle includes: a base body; reservoirs to store brake fluid in the base body; and a single lid member secured to the base body. The reservoir has a reservoir hole, a piston that slides inside the reservoir hole, and a spring that biases the piston. The lid member hermetically seals the reservoir holes. The lid member includes a plate member with which the springs make contact and a ring-shaped sealing member held between one face of the base body to which the plate member is secured and the other face of the plate member opposed to the one face to provide a sealing function. In the lid member, a screw hole is disposed outside a region surrounded by the sealing member and a communication passage communicating with the reservoir holes is provided inside the region.

Abstract: A motor control device (a motor driver) for controlling, by a duty control, a current supplied to a motor includes a driving controller, an off controller, and a voltage acquiring section (an A/D conversion processor, a sampling section). The driving controller performs on/off control of the current supplied to the motor with a first period. The off controller performs off control for the motor with a second period separately from the on/off control performed by the driving controller. The second period is longer than the first period. The voltage acquiring section acquires a voltage between terminals of the motor during a time period in which the off control is performed by the off controller.

Abstract: An electric connection structure of a solenoid valve drive assembly has a solenoid valve, a coil that drives the solenoid valve, and a housing in which the solenoid valve and the coil are located, so that a terminal of the coil and a terminal inside the housing are electrically connected to each other. In the electric connection structure, a coil urging part that urges the coil is provided between the housing and the coil, and the coil urging part has: a base portion to be attached to the housing, and an elastic portion that extends from the base portion to press the coil.

Abstract: An electronic control unit includes: a sensor board on which a sensor is mounted; a control board configured to control an operation of each electric component, based on a physical quantity detected by the sensor; and a housing configured to accommodate the sensor board and the control board, wherein: in an internal space of the housing, a first accommodation chamber in which the electric component is accommodated, a second accommodation chamber in which the sensor board and the control board are accommodated in a hierarchical state, and a partitioning portion which partitions between the first accommodation chamber and the second accommodation chamber are formed; and the sensor board and the control board are supported by the partitioning portion, and a rib is protrudingly provided on the partitioning portion.

Abstract: A vehicle brake control system includes a clutch stroke acquiring section, a braking force holding section, a first release determination section, and a release execution section. The clutch stroke acquiring section acquires a clutch stroke. The braking force holding section holds a braking force imparted to a wheel brake of a vehicle being at a halt. The first release determination section includes a peak value holding part and a returned amount calculator. The peak value holding part holds a peak value of the clutch stroke. The returned amount calculator calculates a returned amount by which a clutch is returned from the peak value. The first release determination section determines whether or not the held braking force should be released, based on the calculated returned amount. If the first release determination section determines that the held braking force should be released, the release execution section releases the held braking force.

Abstract: Pitching is reduced even when strong braking operation is performed during low speed running. A vehicular brake hydraulic pressure control apparatus includes control section that performs pitching reducing control for reducing occurrence of pitching by controlling each control valve unit to switch brake hydraulic pressure between pressure increasing state, pressure decreasing state, and holding state.