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    • 2. 发明公开
    • Druckmittelbetätigte Fahrzeugbremsanlage
    • 压力介质致动的车辆制动系统
    • EP0911237A3
    • 2002-02-13
    • EP98115410.7
    • 1998-08-17
    • WABCO GmbH & Co. OHG
    • Kiel, BerndWirth, AndreasDeike, Karl-Heinz
    • B60T17/04B60T8/00B60T15/18B60T13/26
    • B60T8/343B60T8/00B60T8/344B60T8/361B60T8/46B60T13/263B60T15/18
    • Eine druckmittelbetätigte Fahrzeugbremsanlage ist im allgemeinen in einen der Hinterachse des Fahrzeugs zugeordneten ersten Bremskreis (I) und einen der Vorderachse des Fahrzeugs zugeordneten zweiten Bremskreis (II) unterteilt. Sowohl dem ersten Bremskreis (I) als auch dem zweiten Bremskreis (II) sind je zwei Bremszylinder und je eine Steuerventileinrichtung (7 und 27) zugeordnet, über welche die Bremszylinder in Abhängigkeit von einem Steuerdruck mit einer dem jeweiligen Bremskreis zugeordneten Druckmittelquelle oder mit einer Druckmittelsenke verbindbar sind. Um zu verhindern, daß bei einem Defekt in dem einen Bremskreis, z. B. dem als Vorderachsbremskreis dienenden zweiten Bremskreis (II), beide Bremszylinder (33 und 30) drucklos werden, und um einen Bremszylinder der Vorderachse (32) als zusätzliche Feststellbremse nutzen zu können, ist eine zusätzliche Steuerventileinrichtung (22) vorgesehen, die zwischen dem Druckmittelausgang (28) der diesen beiden Bremszylindern (33 und 30) zugeordneten Steuerventileinrichtung (27) und dem einen der beiden Bremszylinder (33) angeordnet ist, und über die der eine Bremszylinder (33) in Abhängigkeit von einem Steuersignal eines Handbremsventils (50) mit einer von der Druckmittelquelle (43) des zweiten Bremskreises (II) unabhängigen Druckmittelquelle (45) oder mit dem Druckmittelausgang (28) der den beiden Bremszylindern (33 und 30) zugeordneten Steuerventileinrichtung (27) verbindbar ist.
    • 4. 发明公开
    • Anti-lock control apparatus for air over hydraulic brake system
    • Blockierverhindererfüreine hydraulisch pneumatisches Mischbremssystem。
    • EP0331179A1
    • 1989-09-06
    • EP89103690.7
    • 1989-03-02
    • AKEBONO BRAKE INDUSTRY CO., LTD.
    • Fujita, TomohiroKawano, Ryuji
    • B60T8/42
    • B60T8/4241B60T8/46
    • Disclosed is an anti-lock control apparatus for an air over hydraulic brake system having a first air pressure line (4) leading from a brake valve (2) to an air master cylinder (10) as well as a second air pressure line (40) branching from the first air pressure line (4) and leading to a modulator (20). The second air pressure line (40) is provided with an exhaust-side check valve (42, 46) for exhausting air from a pneumatic chamber of the modulator and an air-supply side check valve (48) for supplying air to the pneumatic chamber. The pneumatic chamber (34) of the modulator (20) and the second air pressure line (40) are adapted to hold residual pressure, thereby increasing the rising rate of the braking hydraulic pressure during braking and the falling rate of the braking hydraulic pressure during release of braking, and reducing the amount of air consumed.
    • 公开了一种用于空气超过液压制动系统的防抱死控制装置,其具有从制动阀(2)引导到空气主缸(10)的第一空气压力管线(4)以及第二空气压力管线(40) )从第一空气压力线(4)分支并通向调制器(20)。 第二空气压力线(40)设置有用于从调节器的气动室排出空气的排气侧止回阀(42,46)和用于向气动室供给空气的供气侧止回阀(48) 。 调节器(20)的气动室(34)和第二空气压力管线(40)适于保持残压,从而增加制动期间制动液压的上升速率和制动液压下降率 释放制动,并减少消耗的空气量。
    • 5. 发明公开
    • Working machine
    • EP1810906A3
    • 2008-05-14
    • EP07001155.6
    • 2007-01-19
    • J.C. BAMFORD EXCAVATORS LIMITED
    • Carswell, Ian Harrold
    • B60T13/36B60T8/1761B60T8/34E02F9/02
    • B60T13/36B60T8/1761B60T8/448B60T8/46E02F9/02
    • A working machine (10) has a body (11), a ground engaging structure (15, 16), and a first working arm (25) mounted on the body (11) and extending forwardly of a front end of the body (11), and a second working arm (32) carried at or towards a rear end of the body (11), the ground engaging structure including a front pair of wheels (15), and a rear pair of wheels (16), each pair of wheels (15, 16) being carried on a respective front and rear axle (18, 19) suspended from the body (11), the first working arm (25) in use carrying a loading implement (28) for performing loading operations, and the second working arm (32) carrying an excavating implement (35) for performing excavating operations, and the machine (10) further including a transmission (20) for providing drive from an engine (13) to the front and rear wheels (15, 16), and a braking system (B) including for each wheel (15, 16) a braking device (56) including a rotatable member (57) which rotates with the wheel (15, 16) and a braking member (58) which is moveable by a fluid operated device into frictional engagement with the rotating member (57) to effect braking, the braking system (B) further including a brake control system (110) which provides a brake anti-locking function to resist any braked wheel (15, 16) skidding relative to the ground as a result of becoming locked during braking when a low friction condition exists between the wheel (15, 16) and the ground.
    • 7. 发明公开
    • Brake control system and method for preventing a vehicle from rolling downward on a slope
    • 制动控制系统和方法,用于防止男子辊的机动车辆在斜坡上
    • EP1008503A2
    • 2000-06-14
    • EP99114440.3
    • 1999-07-22
    • Hyundai Motor Company
    • Lee, Kwang-Hee
    • B60T8/00
    • B60T7/122B60T8/175B60T8/17616B60T8/3605B60T8/46B60T8/58
    • The processing for controlling brake systems, which can control the release time of the brake force in consideration of the gradient degree and the load and vehicle weight when the vehicle starts after a stop, so as to prevent the vehicle from rolling backward on the slope. comprising the steps of determining if conditions of a vehicle are suitable for entering a slope start control mode; determining if air pressure in air tanks are maintained over a predetermined pressure after entering the slope start control mode, when it has been determined that the conditions of the vehicle were suitable for the slope start control mode; maintaining brake force by controlling of solenoid valves without brake pedal operation, when it has been determined that the air pressure in the air tanks were maintained over the predetermined pressure; determining if conditions of doors and transmission gear position, clutch stroke, and acceleration pedal operation are suitable for the vehicle's start, while maintaining the brake force without brake pedal operation; determining if the degree of the road gradient is within a predetermined range for the vehicle's steady start on the basis of the data detected by gradient sensor or by a driver's mode selection, when it has been determined that the various conditions were suitable for the vehicle's steady start; calculating pressure reduction rates for the air pressure in order to release the brake force on the basis of the RPM of the engine, vehicle's weight, and amount of stroke displacement applied on the clutch pedal, when it has been determined that the gradient degree is in the range for the vehicle's steady start; releasing the brake force by opening of solenoid valves according to the calculated reduced air pressure rate; and controlling ABS or ASR according to the wheel speed detected by the speed sensors, if an operation of the brake pedal is detected while the vehicle is running.
    • 8. 发明公开
    • VEHICLE BRAKING SYSTEM WITH DRIVE WHEEL SLIP CONTROL
    • 牵引控制车辆制动系统
    • EP0825940A1
    • 1998-03-04
    • EP96915102.0
    • 1996-05-13
    • GRAU LIMITED
    • ROSS, Colin Ford
    • B60T8
    • B60T8/46B60T8/3605B60T8/361B60T8/4818B60T8/5006
    • A braking system comprising an anti-lock vehicle braking system for a vehicle having a pair of drive wheels (13, 14), the wheels of said pair being disposed on opposite sides of the vehicle, comprising a wheel speed sensor (17, 18) for each wheel (13, 14), a controller (19) responsive to wheel speed signals from said two wheel speed sensors (17, 18) for sensing skid conditions at said wheels (13, 14) and for generating skid control instructions, a wheel brake (23, 24) for each wheel (13, 14), responsive to fluid pressure, hereinafter referred to as brake pressure, supplied thereto, a common supply line (37), for supplying a common brake pressure for both of said brakes from a fluid pressure supply valve means (38) in accordance with a brake demand signal and a skid control means (40) controlled by said skid control instructions for modulating the common brake pressure, having a brake apply valve (51) to supply fluid under pressure to the common supply valve (39), in response to the controller detecting a wheel spin condition of one of said wheels (13, 14), to provide a common brake pressure for both of said brakes and isolating means (42, 43) to isolate the brake (23, 24) associated with the other of said wheels (13, 14) from the brake pressure.