| 摘要 |
<p>PURPOSE:To effectively regenerate energy at a low speed time by optimizing a deceleration command pattern for reducing an electric brake force in response to a speed, and maintaining a responding speed necessary for a pneumatic brake system constant irrespective of a deceleration command value. CONSTITUTION:A deceleration command value is obtained by a generator 3 from a signal 1 corresponding to a brake force given from an external instruction unit and a load signal 2 from a load detector, and a deceleration command value 4 is output. An output 16 detected by a tachometer generator 15 is calculated in a square root by a calculator 17 to obtain an output 18. A deceleration pattern generator 19 compares the value 4 with the output 18 to obtain a pattern output 20 for decelerating at substantially constant deceleration rate from the speed when both are equal to a speed 0. A low potential is obtained by a low priority circuit 21 from the output 20 and the value 4 to output the final apparent deceleration command value 2. Thus, energy can be effectively regenerated even after becoming a low speed.</p> |
