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公开(公告)号：US4838074A
公开(公告)日：1989-06-13
申请号：US177085
申请日：1988-04-04
IPC分类号： B62D15/02
CPC分类号： B62D6/10
摘要： A steering torque detecting device includes a steering shaft consisting of an input shaft and an output shaft, a torsion bar provided between the input shaft and the output shaft, a torque detecting unit for converting a quantity of torsion produced in the torsion bar into an electric output, an electricity collecting unit including slip rings and brushes which takes the electric output and supplies an electric power from an outer power source, bearings for supporting the input and output shaft on the same axial line, and a housing supporting the bearings, a printed wiring board in a circular plate form which is provided at its one surface with a resistance layer and an output electrode radially spaced apart from the resistance layer, the resistance layer and the output electrode constituting a potentiometer, and a slider having a portion extending in the radial direction of the circular printed wiring board so as to have contacting areas with a small width to the resistance layer and the output electrode.
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公开(公告)号：US4856323A
公开(公告)日：1989-08-15
申请号：US260276
申请日：1988-10-20
CPC分类号： B62D6/10
摘要： A steering torque detecting device comprises a steering shaft consisting of an input shaft and an output shaft, a torsion bar provided between the input shaft and the output shaft, a torque detecting unit for converting a quantity of torsion produced in the torsion bar into an electric output, an electricity collecting unit comprising slip rings and brushes which takes the electric output and supplies an electric power from an outer power source, bearings for supporting the input and output shaft on the same axial line, and a housing supporting the bearings, a printed wiring board in a circular plate form which is provided at its one surface with a resistance layer and an output electrode radially spaced apart from the resistance layer, the resistance layer and the output electrode constituting a potentiometer, and a slider having a portion extending in the radial direction of the circular printed wiring board so as to have contacting areas with a small width to the resistance layer and the output electrode.
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公开(公告)号：US4875367A
公开(公告)日：1989-10-24
申请号：US260298
申请日：1988-10-20
IPC分类号： B62D15/02
CPC分类号： B62D6/10
摘要： A steering torque detecting device includes a steering shaft consisting of an input shaft and an output shaft, a torsion bar provided between the input shaft and the output shaft, a torque detecting unit for converting a quantity of torsion produced in the torsion bar into an electric output, an electricity collecting unit including slip rings and brushes which takes the electric output and supplies an electric power from an outer power source, bearings for supporting the input and output shaft on the same axial line, and a housing supporting the bearings, a printed wiring board in a circular plate form which is provided at its one surface with a resistance layer and an output electrode radially spaced apart from the resistance layer, the resistance layer and the output electrode constituting a potentiometer, and a slider having a portion extending in the radial direction of the circular printed wiring board so as to have contacting areas with a small width to the resistance layer and the output electrode.
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公开(公告)号：US4666010A
公开(公告)日：1987-05-19
申请号：US772676
申请日：1985-09-05
CPC分类号： B62D6/10 , B62D5/043 , B62D5/0463 , B62D5/0478
摘要： A power steering apparatus for an automobile or other vehicle has a motor which rotates a steering shaft through an electromagnetic clutch and a worm gear reduction gear. When the clutch is engaged, the rotation of the motor causes the rotation of the steering shaft. When the clutch is disengaged, the steering shaft is not connected to either the reduction gear or the motor and can therefore be rotated manually with the same force as for a manual steering apparatus. The reduction gear and the electromagnetic clutch are coaxially disposed around the steering shaft.
摘要翻译： 用于汽车或其他车辆的动力转向装置具有使转向轴通过电磁离合器和蜗轮减速齿轮旋转的电动机。 当离合器接合时，电机的旋转引起转向轴的旋转。 当离合器分离时，转向轴没有连接到减速齿轮或电动机上，因此可以用与手动转向装置相同的力手动旋转。 减速齿轮和电磁离合器同轴地设置在转向轴周围。
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公开(公告)号：US4757869A
公开(公告)日：1988-07-19
申请号：US22211
申请日：1987-03-05
CPC分类号： B62D5/046 , B62D5/0478
摘要： A motor-driven power steering system for a vehicle preventing transmission of operating noises of the motor to the interior of the passenger compartment of the vehicle and for suppressing the generation of radio wave noises: a speed sensor for detecting the travelling speed of the vehicle; a torque sensor mounted on a steering shaft for detecting turning force imparted to the steering wheel by an operator, a first pinion operatively connected with the steering shaft and adapted to be driven by the steering wheel through the intermediary of the steering shaft, a rack operatively connected through tie rods with a pair of steerable road wheels and having a first rack tooth portion and a second rack tooth portion formed thereon, a second pinion being in meshing engagement with the second rack tooth portion on the rack, a motor operatively connected with the second pinion for power assisting the steering motion of the rack induced by the operator a first electromagnetic clutch interposed between the motor and the second pinion for transmitting power therebetween substantially in proportion to the intensity of current supplied thereto, a second clutch interposed between the motor and the second pinion for selectively establishing or disconnecting the operative connection between the motor and the second pinion, and a control unit adapted to receive output signals from the speed sensor and the torque sensor for controlling the operations of the motor, the first clutch and the second clutch.
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公开(公告)号：US4635741A
公开(公告)日：1987-01-13
申请号：US770184
申请日：1985-08-28
CPC分类号： B62D6/10
摘要： A power steering apparatus for an automobile or other vehicle has a steering shaft constituted by an input section and an output section connected by a torsion bar. A mechanism for detecting when a driver is imparting torque to the steering wheel of the vehicle is constituted by a potentiometer having a resistive element and a wiper arm, one of which is mounted on the output section and the other of which is mounted on the torsion bar so that the wiper arm will rotate with respect to the resistive element and the resistance of the potentiometer will change when the torsion bar is rotated with respect to the output section. The potentiometer is electrically connected to a preamplifier mounted on the steering shaft, and the preamplifier is electrically connected to slip rings through which its output can be supplied to a stationary control unit. The electrical output of the potentiometer is independent of the speed of rotation of the steering wheel.
摘要翻译： 用于汽车或其他车辆的动力转向装置具有由输入部分和由扭杆连接的输出部分构成的转向轴。 用于检测驾驶员何时向车辆的方向盘施加扭矩的机构由具有电阻元件和刮水器臂的电位计构成，其中一个安装在输出部分上，另一个安装在扭转 使得雨刮臂相对于电阻元件旋转，并且当扭杆相对于输出部分旋转时，电位器的电阻将改变。 电位器电连接到安装在转向轴上的前置放大器，并且前置放大器电连接到滑环，通过该滑环，其输出可以被提供给静止控制单元。 电位器的电气输出与方向盘的转速无关。
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公开(公告)号：US5039926A
公开(公告)日：1991-08-13
申请号：US591162
申请日：1990-10-01
CPC分类号： B62D5/049
摘要： A motorized power steering apparatus is equipped with a torque sensor including a primary potentiometer for detecting a steering torque applied to the steering wheel by a driver. The torque sensor further includes an auxiliary potentiometer so as to detect variations in the output voltage of a constant voltage power supply to the potentiometers. When there is a difference between the outputs of the primary and auxiliary potentiometers which is greater than a prescribed level, a fail-safe relay is turned off to nullify the power steering operation of a motor. When the output voltage of the power supply for supplying a constant voltage to the primary and auxiliary potentiometers drops below or rises above a predetermined level, the output voltage of the auxiliary potentiometer, which is not used for power steering control, is raised. This increases the difference between the output voltages of the potentiometers to a detectable level, whereby a fail-safe operation is carried out to nullify the power steering operation of the electric motor. Thus, the steering wheel is prevented, in a reliable manner, from being turned spontaneously or unintentionally against the driver's will due to variations in the neutral point of the torque sensor resulting from fluctuations in the voltage supplied thereto.
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公开(公告)号：US4886136A
公开(公告)日：1989-12-12
申请号：US136757
申请日：1987-12-22
IPC分类号： B62D6/02 , B62D5/04 , B62D5/06 , B62D6/00 , B62D119/00
CPC分类号： B62D5/049
摘要： A motor-driven type power assisted steering control apparatus has a torque sensor which is provided with first and second displacement-electric signal converting units and a control unit which is adapted to break a motor current and to interrupt application of a voltage to an electromagnetic clutch as soon as abnormality in the torque sensor is detected on the basis of the electric signals of the first and second displacement-electric signal converting units.
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公开(公告)号：US4830137A
公开(公告)日：1989-05-16
申请号：US136761
申请日：1987-12-22
IPC分类号： B62D6/02 , B62D5/04 , B62D6/00 , B62D101/00 , B62D119/00
CPC分类号： B62D5/049 , B62D5/0436
摘要： Output signals from first and second speed sensors are inputted in a control unit to measure a car speed on the basis of the signals. When the measured value is higher than a predetermined value, control unit determines that one of the speed sensors is abnormal, whereby a motor current to be fed to a d.c. motor is interrupted and a voltage applied to a magnetic clutch is removed.
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公开(公告)号：US4782907A
公开(公告)日：1988-11-08
申请号：US040814
申请日：1987-04-21
IPC分类号： B62D5/04 , B62D6/00 , B62D7/14 , B62D101/00 , B62D113/00
CPC分类号： B62D7/148
摘要： A motor-driven power steering system for front and rear road wheels which is capable of preventing uncontrolled steering resulting from abnormal movement of the rear road wheels in case of a failure in various sensors and/or an electric motor or breakage in the wiring, and enabling vehicle to continuously travel in a safe manner by means of front wheel steering alone after occurrence of such troubles.
摘要翻译： 一种用于前轮和后轮的电动助力转向系统，其能够防止在各种传感器和/或电动机故障或接线中断时的后轮的异常运动引起的不受控制的转向，以及 使得车辆在发生这种故障之后仅通过前轮转向以安全的方式连续行驶。
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