-
公开(公告)号:US20080201044A1
公开(公告)日:2008-08-21
申请号:US12011300
申请日:2008-01-25
IPC分类号: G06F19/00
CPC分类号: B60K28/04 , B60T8/1812 , B66F9/07509 , B66F9/24 , B66F17/003
摘要: A travel control apparatus for a forklift is disclosed. The forklift is provided with a loading device that performs load handling operations by raising and lowering a load, and a drive motor which generates a drive force for travel and is capable of generating a braking force. The apparatus is provided with a sensor for detecting the speed of the motor, a seat switch, a height switch, a load sensor, and a control section. The control section causes the drive motor to generate a braking force when the seat switch detects that the driver has left the seat in the case where the motor speed sensor detects a traveling state, and also changes the strength of the braking in accordance with the height of the loading device and the weight of the load.
摘要翻译: 公开了一种用于叉车的行驶控制装置。 该叉车具有装载装置,该装载装置通过提升和降低载荷来执行装载操作操作;以及驱动马达,其产生用于行驶的驱动力并且能够产生制动力。 该装置设置有用于检测电动机的速度的传感器,座椅开关,高度开关,负载传感器和控制部分。 当电动机速度传感器检测到行驶状态的情况下座椅开关检测到驾驶员已经离开座椅时,控制部分使得驱动电动机产生制动力,并且还根据高度来改变制动强度 的负载装置和负载的重量。
-
公开(公告)号:US3612230A
公开(公告)日:1971-10-12
申请号:US3612230D
申请日:1970-01-07
IPC分类号: B60T8/18
CPC分类号: B60T8/1812 , B60T8/185 , B60T8/1893
摘要: A fluid cylinder and piston and piston sleeve arrangement for providing different brake pressures with different vehicle loads in which the piston sleeve is limited in its movement by means controlled in accordance with the spacing between a pair of members of the vehicle, the spacing being determined by the vehicle load.
-
公开(公告)号:US3148919A
公开(公告)日:1964-09-15
申请号:US10798661
申请日:1961-05-05
IPC分类号: B60T8/18
CPC分类号: B60T8/1812 , Y10T137/8663
-
公开(公告)号:US2985487A
公开(公告)日:1961-05-23
申请号:US60554156
申请日:1956-08-22
申请人: KELSEY HAYES CO
发明人: AYERS JR DAVID T
CPC分类号: B60T13/242 , B60T8/1812
-
公开(公告)号:US1765390A
公开(公告)日:1930-06-24
申请号:US31715028
申请日:1928-11-05
发明人: WINTER HARRY J
IPC分类号: B60T8/18
CPC分类号: B60T8/1812
-
公开(公告)号:US20170240154A1
公开(公告)日:2017-08-24
申请号:US15427870
申请日:2017-02-08
CPC分类号: B60T8/18 , B60L7/26 , B60T1/10 , B60T7/042 , B60T8/1812 , B60T8/267 , B60T8/442 , B60T8/4872 , B60T13/142 , B60T13/146 , B60T13/662 , B60T13/686 , B60T17/02 , B60T2220/04 , F16D61/00
摘要: In an electric automobile traveling by driving a rear wheel with an electric motor mounted on a vehicle body rear part, a load distributed to the rear wheel is larger than a load distributed to a front wheel by an amount corresponding to a weight of the electric motor. Therefore, it is desirable that a braking force distribution amount to the rear wheel be larger than that to the front wheel. Without providing a proportional pressure reducing valve changing a ratio of braking force distributed between the front and rear wheels, it is possible, by supplying a same brake fluid pressure from a master cylinder to front and rear wheel brake calipers and carrying out regenerative braking in the rear wheel, to make the braking force distribution amount to the rear wheel larger than that to the front wheel.
-
公开(公告)号:US5259666A
公开(公告)日:1993-11-09
申请号:US910202
申请日:1992-07-08
申请人: Philippe Castel
发明人: Philippe Castel
IPC分类号: B60T8/18 , B60T13/52 , B60T13/563 , B60T8/26
CPC分类号: B60T8/1818 , B60T13/563 , B60T8/1812
摘要: The invention relates to a double brake booster for a motor vehicle, provided with a valve enabling the boost ratio to be varied as a function of the load of the vehicle. In addition to two pistons (64, 66) articulated to an arm (72), this valve comprises a pusher (80) driven by a third piston (68), to a first face of which is applied a first force representative of the load of the vehicle and to a second face of which is applied a second force of elastic nature, in opposition to the first, this third piston adopting, under the effect of the first and second forces, an equilibrium position which determines that of a variable bearing point for the lever which constitutes the arm (72). Moreover, the arm, the pusher and the three pistons are mounted in the same body, the arm and the pusher being housed in a single cavity (74) which is defined in this body and subjected to a low pressure, and toward which the second faces of the three pistons are turned.
摘要翻译: 本发明涉及一种用于机动车辆的双制动助力器,其具有使得能够根据车辆的载荷来改变增压比的阀。 除了铰接到臂(72)的两个活塞(64,66)之外,该阀包括由第三活塞(68)驱动的推动器(80),其中第一表面施加代表负载的第一力 并且其第二面被施加有弹性的第二力,与第一动力相反,该第三活塞在第一和第二作用力的作用下采用一个平衡位置,该平衡位置决定了可变轴承 构成臂(72)的杆的点。 此外,臂,推动器和三个活塞安装在相同的主体中,臂和推动器容纳在限定在本体中并受到低压的单个空腔(74)中,并且第二 三个活塞的面被转动。
-
公开(公告)号:US5178441A
公开(公告)日:1993-01-12
申请号:US634582
申请日:1990-12-27
申请人: Helmut Heibel , Josef Pickenhahn
发明人: Helmut Heibel , Josef Pickenhahn
IPC分类号: B60T7/04 , B60T8/18 , B60T8/24 , B60T8/36 , B60T8/38 , B60T8/44 , B60T8/62 , B60T13/52 , B60T13/72
CPC分类号: B60T13/72 , B60T13/52 , B60T7/042 , B60T8/1812 , B60T8/3625 , B60T8/38 , B60T8/448
摘要: The invention relates to a motor vehicle braking system, comprising a brake pedal (P) to generate brake pressure in an hydraulic fluid, a brake pressure booster (12) operated by differential pressure and adapted to be actuated by a first valve (V.sub.1) which is pressurized mechanically by the brake pedal (P), and a first sensor (S.sub.1) to detect the pressure generated by the brake pedal. A second sensor (S.sub.R, S.sub.L) is provided to detect vehicle deceleration or rotational retardation of braked wheel, and a data processing unit serves to compare the data determined by the sensors (S.sub.1, S.sub.R, S.sub.L) and to generate a control signal in response to the result of the comparison for a second valve (V.sub.2) which is controllable electrically and by which a pressure difference is adjustable in the brake pressure booster (12).
摘要翻译: 本发明涉及一种机动车辆制动系统,其包括在液压流体中产生制动压力的制动踏板(P),通过差压操作并适于由第一阀(V1)致动的制动器增压器(12) 由制动踏板(P)机械加压,第一传感器(S1)检测制动踏板产生的压力。 提供第二传感器(SR,SL)以检测制动轮的车辆减速度或旋转延迟,并且数据处理单元用于比较由传感器(S1,SR,SL)确定的数据,并且响应地产生控制信号 对于电动控制的第二阀(V2)的比较结果,并且在制动助力器(12)中压力差可调节。
-
公开(公告)号:US4093313A
公开(公告)日:1978-06-06
申请号:US804743
申请日:1977-06-08
CPC分类号: B60T8/266 , B60T8/1812 , Y10S303/04
摘要: A two-circuit brake system for motor vehicles with a shiftable master brake cylinder which includes two pressure spaces for the two brake circuits, of which the pressure space for the front axle brake circuit has a larger cross section than the pressure space for the rear axle brake circuit and which are connected with each other by a line extending externally of the master brake cylinder, whereby a shifting valve operating in dependence on the vehicle load is arranged in this line which is able to establish and interrupt the connection between the two pressure spaces; an intermediate piston is arranged between the two pressure spaces in the master brake cylinder coaxial to the two pressure pistons, which is freely movable within a guide sleeve of smaller diameter and is provided with central extensions on both sides thereof for the mechanical cooperation with the two pressure pistons; the shifting valve is thereby adapted to be shifted as a function of the load, of the pressure prevailing in the brake cylinder and of the deceleration attainable with this pressure.
摘要翻译: 一种具有可移动主制动缸的机动车辆的双回路制动系统,其包括用于两个制动回路的两个压力空间,其中前轴制动回路的压力空间具有比用于后轴的压力空间更大的横截面 制动回路,并且通过从主制动缸外部延伸的线路彼此连接,由此根据车辆负载操作的换档阀被布置在该线路中,该线路能够建立和中断两个压力空间 ; 在与两个压力活塞同轴的主制动缸之间的两个压力空间之间设置有中间活塞,该压力空间可在较小直径的导向套筒内自由移动,并在其两侧设置有中心延伸部,用于与两个 压力活塞; 因此,换档阀适于根据负载,制动缸中的压力和通过该压力可获得的减速度而变化。
-
公开(公告)号:US3862781A
公开(公告)日:1975-01-28
申请号:US41577373
申请日:1973-11-14
申请人: GEN MOTORS CORP
发明人: KING ROBERT M , WORMAN WILLIAM E
CPC分类号: B60T8/26 , B60T8/1812 , B60T8/30 , Y10S303/03
摘要: A vehicle brake system in which the brake circuit for the rear brakes has two proportioning valves in parallel flow relation with one proportioning valve being actuatable at relatively low input pressures to begin proportioning fluid to the brakes, and the other being actuatable at a substantially higher input pressure to begin proportioning fluid to the brakes. The control mechanism for establishing one or the other of the proportioning valves as the control proportioning valve includes a deceleration sensing device and a master cylinder output pressure sensing device and various controls to establish the appropriate proportioning valve as the control proportioning valve in relation to vehicle load, vehicle deceleration being a function of vehicle load.
摘要翻译: 一种车辆制动系统,其中用于后制动器的制动回路具有两个并联流量关系的比例阀,一个配比阀可在相对较低的输入压力下启动,以开始将流体与制动器配比,而另一个可在相当高的输入 压力开始将流体与制动器配比。 用于建立一个或另一个比例阀作为控制比例阀的控制机构包括减速度检测装置和主缸输出压力检测装置以及各种控制装置,以建立适当的配比阀作为控制比例阀相对于车辆负载 车辆减速度是车辆负载的函数。
-
-
-
-
-
-
-
-
-