| 摘要 |
<p>PURPOSE:To improve the travelling performance and to simplify the control system by delaying inversion from on to off through a range and holding clutch engaging condition during changeover between D and Ds ranges. CONSTITUTION:Under turning on of Ds range switch 50 or advance range, L- level signal is produced while under turning off, H-level signal is produced, where said switch 50 is connected directly to a control unit 51 or through delay circuit 52 to NAND gate 53. Circuit 52 will hold and lag the output signal for predetermined time T at L-level only when the switch signal has inverted from L to H level while under reverse case, inverted signal is produced immediately. The output of gate 53 is connected through OR gate 54 receiving signals from other range switch, AND gate 54 and drive transistor 56 to a clutch coil 15.</p> |
