| 摘要 |
A master cylinder for a two-circuit brake system which includes anti-skid control has two separate chambers and pistons. The main control piston is associated with an auxiliary piston which it engages after a predetermined amount of travel. The auxiliary piston has an extension which holds the brake control valve and which is opened by the control piston during its travel. Furthermore, the second circuit cylinder includes a pressure sensor which cooperates with double pistons which can activate a warning when the piston travel is not in a predetermined relation to the applied fluid pressure. Also included is an electronic switching circuit and associated valve mechanism for imparting a pulsating stroke to said double pistons.
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