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    • 4. 发明公开
    • HAUPTZYLINDER FÜR EINE HYDRAULISCHE KRAFTFAHRZEUGBREMSANLAGE
    • 总泵机动车液压制动系统
    • EP2566730A1
    • 2013-03-13
    • EP11718008.3
    • 2011-04-28
    • Continental Teves AG & Co. oHG
    • POSCH, VolkerKÖNIG, HaraldJUNGMANN, Udo
    • B60T11/20B60T11/236
    • F04B13/00B60T11/20B60T11/232
    • The invention relates to a master cylinder 1 for a hydraulic motor vehicle brake system, having at least one piston 3, 4 which is arranged in a housing 2 such that it can be displaced along an axis L as a result of a brake actuation and to which is assigned a pressure chamber 5, 6, which can be connected to wheel brakes, and a replenishment chamber 7, 8, wherein in the non-actuated state, the pressure chamber 5, 6 can be connected via a compensating bore 9, 10 to a pressure medium vessel, and in the event of a brake actuation, for the purpose of obtaining a pressure build-up, said pressure chamber can be separated from said pressure medium vessel by means of a sealing sleeve 11, 12 arranged on the piston 3, 4 and the replenishment chamber 7, 8 is connected via a replenishment bore 13, 14 to the pressure medium vessel, wherein the sealing sleeve 11, 12 seals off the pressure chamber 5, 6 in the direction of the replenishment chamber 7, 8 in the event of a brake actuation, and allows additional pressure medium to be drawn from the replenishment chamber 7, 8 in the direction of the pressure chamber 5, 6 when the brake actuation is released. To provide a master cylinder of the stated type which is cheap and simple to produce, it is proposed according to the invention that the sealing sleeve 11, 12 is arranged in an encircling groove 15, 38, which is open in the radial direction, of the piston 3, 4, which groove is formed by a first and a second radially encircling projection 16, 17, 18, 19, wherein when the brake actuation is released, the drawing of additional pressure medium from the replenishment chamber 7, 8 in the direction of the pressure chamber 5, 6 takes place via the second projection 18, 19.
    • 5. 发明公开
    • ELEKTROHYDRAULISCHE BREMSANLAGE MIT FAHRDYNAMIKREGELUNG
    • 驾驶动态控制的汽车液压制动
    • EP1863690A1
    • 2007-12-12
    • EP06725263.5
    • 2006-03-23
    • Continental Teves AG & Co. oHG
    • DROTT, PeterKÖNIG, HaraldJUNGMANN, UdoBISCHOFF, Andreas
    • B60T11/20
    • B60T11/20B60T8/38B60T8/4872
    • The invention relates to an electrohydraulic braking system comprising vehicle dynamics control. Said system comprises a brake master cylinder (1) that can be actuated by a brake pedal (41), said cylinder having at least one piston that is displaceably mounted in a housing (6) of the brake master cylinder (1). The piston, together with the housing (6), delimits a hydraulic pressure chamber (4, 5), which can be connected to a hydraulic fluid container (72) that is at atmospheric pressure via a hydraulic fluid container connection (30, 31) and a hydraulic fluid channel (22, 23; 60, 61) and connected to wheel brakes (75-78) via an outlet (32, 33). To control the vehicle dynamics, a hydraulic fluid transport unit (94, 95) transports hydraulic fluid from the hydraulic fluid container (72) to the wheel brakes (75, 76, 77, 78). To achieve a short response time for the vehicle dynamics, whilst at the same time obtaining a short free travel of the master brake cylinder, a bypass channel (34, 35; 52, 59)is provided between the hydraulic fluid container connection (30, 31) and the outlet (32, 33) of the brake master cylinder (1). According to the invention, the bypass channel (34, 35; 52, 59) is provided with a valve (37, 38), which permits the hydraulic fluid to flow from the hydraulic fluid container (72) to the hydraulic fluid transport unit (94, 95) via the bypass channel (34, 35; 52, 59) and prevents said fluid from flowing in the opposite direction.