Fluid-pressure and analogous brake systems – Multiple systems
Patent
1987-04-24
1988-05-31
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Multiple systems
180233, 180248, 180249, 188181T, 188349, 303 962, 303 971, 303100, 303112, 303113, B60K 1734, B60T 832
Patent
active
047476435
ABSTRACT:
A motor vehicle comprises two driven axles (5, 8), which are interconnected by an interaxle coupling (10) for transmitting a torque only when the halves of the coupling (10) rotate at different speeds and by a speed-changing transmission (9) connected in series with the coupling (10). A brake system (12 to 15) is provided for braking the wheels of both axles (5, 8). In order to ensure that the wheels of the driven rear axle (8) will not block before the wheels of the driven front axle (5), a pressure-setting controller (17) is adapted to control a brake pressure regulator (16) associated with the driven rear axle (8) and is responsive to a reversal of the direction in which torque is transmitted to and from the driven rear axle (8). During a transmission of torque from the driven rear axle (8) to the driven front axle (5), the pressure-setting controller (17) substantially reduces in dependence on the value of the torque being transmitted the pressure which is applied to brake the wheels of the driven rear axle (8) relative to the pressure which is applied to brake the wheels of the driven front axle (5).
REFERENCES:
patent: 4538700 (1985-09-01), Suzuki
patent: 4552241 (1985-11-01), Suzuki
patent: 4589511 (1986-05-01), Leiber
patent: 4605087 (1986-08-01), Ashauer et al.
patent: 4641895 (1987-02-01), Belart et al.
patent: 4669569 (1987-06-01), Suzuki et al.
patent: 4671373 (1987-06-01), Sigl
Butler Douglas C.
Steyr-Daimler-Puch Aktiengesellschaft
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