| 摘要 |
Brake fluid inlet and outlet valves to supply or drain pressurized brake fluid to or from a vehicle wheel are controlled by a plurality of acceleration sensors which receive acceleration signals derived by a differentiator from vehicle wheel speed signals. The vehicle wheel acceleration signal is additionally differentiated to obtain a rate of acceleration change signal, and two of the threshold switches are responsive to the further differentiated rate of acceleration change signal to provide for better matching of response of the system to road conditions, or changes in road conditions during braking.
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