Pneumatic tire pressure change detecting system comparing wheel speeds
and weighting detection based on running conditions
    1.
    发明授权
    Pneumatic tire pressure change detecting system comparing wheel speeds and weighting detection based on running conditions 失效
    气动轮胎压力变化检测系统根据运行条件比较轮速和加权检测

    公开(公告)号:US5513523A

    公开(公告)日:1996-05-07

    申请号:US308440

    申请日:1994-09-19

    IPC分类号: B60C23/06 G01M17/02 E01C23/02

    CPC分类号: B60C23/061

    摘要: A subtractor calculates an actual wheel speed difference between rotational speeds of left and right wheels on a motor vehicle, and a steering angle converter calculates an actual steering angle from the actual wheel speed difference. The difference between the actual steering angle and an adequate steering angle which is produced based on a lateral acceleration is compared with a predetermined reference range. If the difference between the actual and adequate steering angles exceeds the predetermined reference range, then the pneumatic pressure of a tire on one of the left and right wheels is determined as being lowered. In the steering angle converter, a weight value is established according to a running condition of the motor vehicle, and the calculated actual steering angle or comparative sensitivity is varied according to the weight value. Since the comparative sensitivity is varied according to the running condition, a reduction in the pneumatic pressure of the tire can be detected even under running conditions which lead to large errors.

    摘要翻译: 减法器计算机动车辆上左右轮的转速之间的实际车轮速度差,转向角转换器根据实际车轮速度差计算实际转向角。 将实际转向角与基于横向加速度产生的适当的转向角的差与预定的参考范围进行比较。 如果实际和足够的转向角之间的差超过预定的参考范围,则确定左轮和右车之一上的轮胎的气压降低。 在转向角转换器中,根据机动车辆的行驶状态建立重量值,并且根据重量值改变计算出的实际转向角度或比较灵敏度。 由于比较灵敏度根据运行条件而变化,因此即使在导致大的误差的运行条件下也能够检测出轮胎的气压降低。

    ELECTRONIC POWER STEERING APPARATUS
    2.
    发明申请
    ELECTRONIC POWER STEERING APPARATUS 有权
    电子转向装置

    公开(公告)号:US20140019008A1

    公开(公告)日:2014-01-16

    申请号:US13990346

    申请日:2011-11-22

    IPC分类号: B62D6/00 B62D5/04

    CPC分类号: B62D6/00 B62D5/0463 B62D6/008

    摘要: An electronic power steering apparatus for a vehicle having a steering mechanism to generate a steering assisting force includes: a steering angle sensor; a steering torque sensor; a target steering torque setting unit for setting a target steering torque based on the detected steering angle; a torque deviation computing unit for computing a torque deviation between the target steering torque and the detected steering torque; a first target current value computing unit for computing a first target current value for generating a steering assisting force by the motor based on the computed torque deviation; and a vehicle speed sensitivity adjusting unit that adjusts the first target current value, at least corresponding to a detected vehicle speed, and outputs the adjusted first current value as a second target current value. The motor control unit controls the motor to generate the steering assisting force based on the second target current value.

    摘要翻译: 一种用于具有用于产生转向辅助力的转向机构的车辆用电动助力转向装置,包括:转向角传感器; 转向扭矩传感器; 目标转向转矩设定单元,用于基于检测到的转向角来设定目标转向转矩; 用于计算目标转向转矩和检测到的转向转矩之间的转矩偏差的转矩偏差计算单元; 第一目标电流值计算单元,用于基于所计算的转矩偏差计算用于通过所述电动机产生转向辅助力的第一目标电流值; 以及车速灵敏度调整单元,其至少对应于检测到的车速来调整第一目标电流值,并将调整后的第一电流值作为第二目标电流值输出。 马达控制单元基于第二目标电流值控制马达产生转向辅助力。

    Variable damper
    4.
    发明授权
    Variable damper 失效
    可变阻尼器

    公开(公告)号:US07958979B2

    公开(公告)日:2011-06-14

    申请号:US11954292

    申请日:2007-12-12

    IPC分类号: F16F9/53 F16F9/30

    摘要: In a variable damper using magneto-rheological fluid that comprises a cylinder (12) filled with the fluid, a piston (16) slidably received in the cylinder and including an inner yoke (32; 62; 126), an outer yoke (31; 64, 65; 140) and a coil (34; 130), a piston rod (13) having an inner end attached to the piston and an outer end extending out of the cylinder and a magnetic valve formed in a gap between the inner and outer yokes, at least one of the outer yoke and inner yoke consisting of at least two parts that are joined to each other in an axial direction. The two piece arrangement of the inner yoke or outer yoke allows the end plates to be omitted because the gap spacer can be installed without requiring end plates, and this contributes to a compact design and a favorable damping property. Also, the manufacturing and servicing of the damper can be simplified. When end plates (134) are used, the freedom in the positioning of the coil is increased.

    摘要翻译: 在使用磁流变流体的可变阻尼器中,其包括填充有流体的气缸(12),可滑动地容纳在气缸中并包括内磁轭(32; 62; 126)的活塞(16),外磁轭(31; 64,65; 140)和线圈(34; 130),具有附接到活塞的内端的活塞杆(13)和延伸出气缸的外端以及形成在内部和 外轭铁,外轭铁和内轭铁中的至少一个由在轴向上彼此接合的至少两个部分组成。 内轭铁或外轭铁的两件式装置允许端板被省略,因为间隙垫片可以安装而不需要端板,这有助于紧凑的设计和良好的阻尼性能。 此外,可以简化阻尼器的制造和维修。 当使用端板(134)时,线圈定位的自由度增加。

    Free cutting steel containing controlled inclusions and the method of
making the same
    6.
    发明授权
    Free cutting steel containing controlled inclusions and the method of making the same 失效
    含有控制夹杂物的自由切削钢及其制造方法

    公开(公告)号:US4434006A

    公开(公告)日:1984-02-28

    申请号:US149939

    申请日:1980-05-14

    IPC分类号: C22C38/60 C22C33/00

    CPC分类号: C22C38/60

    摘要: Mechanical anisotropy of a free cutting steel having excellent machinability can be effectively decreased by controlling inclusions so that the steel may contain inclusion A which softens at a temperature below 1000.degree. C. and inclusion B which has a melting point above 1300.degree. C. but exhibits plasticity at a temperature between 900.degree. and 1300.degree. C., that the inclusion A and the inclusion B may exist in a mutually adhered form, and that the areal percentage of the inclusion A may be at least 1% of areal percentage of the inclusion B.Typical compositions of the inclusion A are: Pb, Bi, MnS--MnTe, SiO.sub.2 --K.sub.2 O, SiO.sub.2 --Na.sub.2 O, SiO.sub.2 --K.sub.2 O--Al.sub.2 O.sub.3, SiO.sub.2 --Na.sub.2 O--Al.sub.2 O.sub.3 and SiO.sub.2 --Na.sub.2 O--CaO--MnO; and typical compositions of the inclusion B are: MnS, MnSe and Mn(S,Se).

    摘要翻译: 通过控制夹杂物可以有效地降低切削性能优异的自由切削钢的机械各向异性,使得钢可以含有在低于1000℃的温度下软化的夹杂物A和熔点高于1300℃的夹杂物B,但表现出 在900℃至1300℃的温度下的可塑性,夹杂物A和夹杂物B可以以相互粘合的形式存在,并且夹杂物A的面积百分比可以是包含的面积百分比的至少1% B.包含物A的典型组成为:Pb,Bi,MnS-MnTe,SiO2-K2O,SiO2-Na2O,SiO2-K2O-Al2O3,SiO2-Na2O-Al2O3和SiO2-Na2O-CaO-MnO; 并且包含B的典型组成是:MnS,MnSe和Mn(S,Se)。

    Control device for damping-force adjustable damper
    7.
    发明授权
    Control device for damping-force adjustable damper 有权
    阻尼力调节阻尼器控制装置

    公开(公告)号:US08935047B2

    公开(公告)日:2015-01-13

    申请号:US12842215

    申请日:2010-07-23

    申请人: Shigenobu Sekiya

    发明人: Shigenobu Sekiya

    摘要: A damping-force-adjustable-damper control device includes a target damping force setting unit which sets target damping force, a stroke position detecting unit which detects a stroke position of the damping-force adjustable damper, a stroke speed calculating unit which calculates a stroke speed, and a target output calculating unit which calculates a target output value to be output to the damping-force adjustable damper in accordance with an obtained target damping force and an obtained stroke speed. The control device also includes a processing-period setting unit which sets the processing periods of the stroke speed calculating unit and the target output calculating unit in accordance with a resonant frequency of unsprung mass, and which sets the processing period of the target damping force setting unit to be longer than the processing periods of the stroke speed calculating unit and the target output calculating unit in accordance with a resonant frequency of sprung mass.

    摘要翻译: 阻尼力调节阻尼器控制装置包括设定目标阻尼力的目标阻尼力设定单元,检测阻尼力调节阻尼器的行程位置的行程位置检测单元,计算行程的行程速度计算单元 速度和目标输出计算单元,其根据获得的目标阻尼力和获得的行程速度来计算要输出到阻尼力可调阻尼器的目标输出值。 控制装置还包括处理期设定部,其根据非簧下质量的共振频率设定行程速度计算部和目标输出运算部的处理周期,并设定目标阻尼力设定的处理期间 单位比根据弹簧质量的共振频率长于行程速度计算单元和目标输出计算单元的处理周期。

    Rear toe control system and method
    8.
    发明授权
    Rear toe control system and method 有权
    后脚趾控制系统及方法

    公开(公告)号:US08666600B2

    公开(公告)日:2014-03-04

    申请号:US13528383

    申请日:2012-06-20

    IPC分类号: G06F7/00

    摘要: A rear toe control (RTC) system and method for a vehicle includes rear actuators for applying rear steering to rear wheels of the vehicle and rear sensors for measuring individual toe angles of the rear wheels. The system further includes a RTC failure module that determines when the RTC system has failed and a road condition determining module that determines whether the vehicle is encountering a poor road surface condition. An electronic control unit (ECU) is disposed on the vehicle and is configured to impose a speed limit for the vehicle when the RTC failure module determines that the RTC system has failed and the road condition determining module determines that the vehicle encountering a poor road surface condition.

    摘要翻译: 用于车辆的后脚趾控制(RTC)系统和方法包括用于向车辆的后轮施加后转向的后致动器和用于测量后轮的各个脚趾角度的后传感器。 该系统还包括确定RTC系统何时失败的RTC故障模块和确定车辆是否遇到路面状况差的道路状况确定模块。 车辆上设置有电子控制单元(ECU),当RTC故障模块确定RTC系统发生故障并且道路状况确定模块确定车辆遇到路面不良时,车辆施加限速 条件。

    CONTROL DEVICE FOR DAMPING-FORCE ADJUSTABLE DAMPER
    9.
    发明申请
    CONTROL DEVICE FOR DAMPING-FORCE ADJUSTABLE DAMPER 有权
    用于阻尼力可调阻尼器的控制装置

    公开(公告)号:US20110022265A1

    公开(公告)日:2011-01-27

    申请号:US12842215

    申请日:2010-07-23

    申请人: Shigenobu Sekiya

    发明人: Shigenobu Sekiya

    IPC分类号: B60G17/0165

    摘要: A damping-force-adjustable-damper control device includes a target damping force setting unit which sets target damping force, a stroke position detecting unit which detects a stroke position of the damping-force adjustable damper, a stroke speed calculating unit which calculates a stroke speed, and a target output calculating unit which calculates a target output value to be output to the damping-force adjustable damper in accordance with an obtained target damping force and an obtained stroke speed. The control device also includes a processing-period setting unit which sets the processing periods of the stroke speed calculating unit and the target output calculating unit in accordance with a resonant frequency of unsprung mass, and which sets the processing period of the target damping force setting unit to be longer than the processing periods of the stroke speed calculating unit and the target output calculating unit in accordance with a resonant frequency of sprung mass.

    摘要翻译: 阻尼力调节阻尼器控制装置包括设定目标阻尼力的目标阻尼力设定单元,检测阻尼力调节阻尼器的行程位置的行程位置检测单元,计算行程的行程速度计算单元 速度和目标输出计算单元,其根据获得的目标阻尼力和获得的行程速度来计算要输出到阻尼力可调阻尼器的目标输出值。 控制装置还包括处理期设定部,其根据非簧下质量的共振频率设定行程速度计算部和目标输出运算部的处理周期,并设定目标阻尼力设定的处理期间 单位比根据弹簧质量的共振频率长于行程速度计算单元和目标输出计算单元的处理周期。

    CONTROL SYSTEM FOR ADJUSTABLE DAMPING FORCE
    10.
    发明申请
    CONTROL SYSTEM FOR ADJUSTABLE DAMPING FORCE 有权
    可调节阻力控制系统

    公开(公告)号:US20100017057A1

    公开(公告)日:2010-01-21

    申请号:US12569282

    申请日:2009-09-29

    IPC分类号: B60G17/016

    摘要: Upon searching control parameter used to adjust damping force of a damper from a map in accordance with damper speed and target damping force decided based on moving condition of the vehicle, the map sets the control parameter, which are relatively higher than the actual damping force characteristics, as map data in the area where the damper speed is less than a predetermined value, the area where the noise has the great influence on the sensor outputs. Therefore, it can be prevented that the control parameter of the damping force is varied largely or varied in a short period by the influence of noise, and the driving stability control of the vehicle can be executed exactly and the noise caused by switching the damping force of the damper can be reduced.

    摘要翻译: 根据基于车辆的移动状态决定的阻尼器速度和目标阻尼力,搜索用于调整阻尼器的阻尼力的控制参数,该映射设定相对高于实际阻尼力特性的控制参数 作为阻尼器速度小于规定值的区域的地图数据,噪声对传感器输出影响较大的区域。 因此,可以防止阻尼力的控制参数由于噪声的影响而在短时间内变化很大或变化,并且可以精确地执行车辆的驾驶稳定性控制,并且通过切换阻尼力引起的噪声 的减震器可以减少。