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    • 33. 发明授权
    • Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency
    • 具有Tau-V min模式驱动的液晶,液晶混合物具有负温度或零温度依赖性
    • US06246452B1
    • 2001-06-12
    • US08545198
    • 1995-10-19
    • Chizu SekineKyoko YamamotoKoichi FujisawaYukari FujimotoTsutomu MatsumotoMasayoshi Minai
    • Chizu SekineKyoko YamamotoKoichi FujisawaYukari FujimotoTsutomu MatsumotoMasayoshi Minai
    • G02F1133
    • C09K19/345C09K19/46
    • A ferroelectric chiral smectic liquid crystal mixture comprising at least one compound of the formula (I): wherein R11 and R12 represent, independently each other, a C1-C20 alkyl, alkoxy or alkoxyalkyl group which may be substituted by at least one halogen atom and may have an unsaturated bond; A11, A12 and A13 represent, independently each other, a phenylene group which may be substituted by a fluorine atom, or the like; * indicates an asymmetric carbon atom; Z is a hydrogen atom or a fluorine atom; n is an integer of 0 to 10; r, s, t and u are each 0 or 1, provided that when u is 1, the compound (I) is a trans-olefin, and at least one compound of the formula (II): wherein R21 is a saturated or unsaturated C3-C20 alkyl group or a saturated or unsaturated C3-C20 alkoxyalkyl group; A21, A22 and A23 represent, independently each other, a phenylene group which may be substituted by a fluorine atom or the like; X2 is —C≡C— or the like; Z is a hydrogen atom or a fluorine atom; n is an integer of 1 to 10; m is 0 or 1; and * indicates an asymmetric carbon atom, which liquid crystal mixture has a high response speed and a small dependency of &tgr;-Vmin characteristic on temperature and a wide temperature driving margin.
    • 一种铁电手性近晶液晶混合物,其包含至少一种式(I)化合物:其中R 11和R 12彼此独立地表示可以被至少一个卤素原子取代的C 1 -C 20烷基,烷氧基或烷氧基烷基, 可具有不饱和键; A11,A12和A13彼此独立地表示可被氟原子取代的亚苯基等; *表示不对称碳原子; Z是氢原子或氟原子; n为0〜10的整数。 r,s,t和u各自为0或1,条件是当u为1时,化合物(I)为反式烯烃,和至少一种式(II)化合物:其中R 21为饱和或不饱和的 C3-C20烷基或饱和或不饱和C3-C20烷氧基烷基; A21,A22和A23彼此独立地表示可以被氟原子等取代的亚苯基; X 2是-C = C - 等; Z是氢原子或氟原子; n为1〜10的整数。 m为0或1; 和*表示不对称碳原子,该液晶混合物具有较高的响应速度,并且对于温度和宽温度驱动裕度具有较小的依赖性。
    • 36. 发明授权
    • Device for controlling steering force in power steering apparatus
    • 用于控制动力转向装置转向力的装置
    • US4858134A
    • 1989-08-15
    • US98185
    • 1987-09-18
    • Kunihiko EtoShiro TakeuchiYutaka MoriShigeo TanookaKazumasa KodamaTsutomu Matsumoto
    • Kunihiko EtoShiro TakeuchiYutaka MoriShigeo TanookaKazumasa KodamaTsutomu Matsumoto
    • B62D6/02B62D6/00B62D113/00B62D127/00
    • B62D6/00
    • There is disclosed a device for controlling steering force in a power steering apparatus having an electromagnetic control valve according to road and driving conditions. The device includes a car speed sensor, a steering angle sensor, first arithmetic means, second arithmetic means, correcting means, control current arithmetic means and controlling means. The first arithmetic means computes a driving condition index by using car speed information. The second arithmetic means computes a road condition index by using steering angle signals. The correcting means converts the driving condition index into a correction driving condition index which takes any one of several stepwise-varied values. The control current arithmetic means computes an output control current value applied to electromagnetic control valve by the controlling means. The device further includes means for detecting lateral acceleration utilized for controlling the steering force.
    • 公开了一种用于在具有根据道路和驾驶条件的电磁控制阀的动力转向装置中控制转向力的装置。 该装置包括车速传感器,转向角传感器,第一运算装置,第二算术装置,校正装置,控制电流运算装置和控制装置。 第一算术装置通过使用车速信息来计算驾驶条件指数。 第二运算装置通过使用转向角信号来计算道路状况指标。 校正装置将驾驶条件指数转换为采用几个逐步变化值中的任何一个的校正驱动条件指数。 控制电流运算装置计算由控制装置施加到电磁控制阀的输出控制电流值。 该装置还包括用于检测用于控制转向力的横向加速度的装置。