| 摘要 |
1,197,737. Controlling vehicles. A. NAKANO. 17 Oct., 1967 [21 Oct., 1966 (2); 18 March, 19671, No. 47225/67. Heading B7H. [Also in Division F2] In an hydraulic brake system, an electromagnetically operated valve 10 is interposed between the master cylinder 14 and the brake cylinders 34 to enable the brakes to be locked on. When the vehicle speed falls below a predetermined value, a solenoid (L), Fig. 4 (not shown), releases to close switch 35. Depression of the clutch, release of the accelerator, or putting the gear into neutral closes one of the three parallel connected switches 40, 41, 42 to actuate valve 10 and lock the brake at whatever pressure is applied by pedal 11. The pressure may be maintained by a piston and cylinder (30), Fig. 2 (not shown), or by a compressor (75), Fig. 9 (not shown). The solenoid (L) is energized from a generator (65) coupled to the speedometer shaft (66). In a vehicle having automatic transmission switch 42 would be omitted, and switch 40 would be operated by the transmission selector. |
