发明名称 |
A GEAR SHIFT CONTROL SYSTEM |
摘要 |
<p>A gear shift control system for an automatic transmission comprises an air flow sensor for sensing the quantity of air taken into an internal combustion engine and supplying a corresponding electrical signal to a differentiator which provides a derivative of the sensed intake air quantity. A vehicle speed sensor senses the speed of rotation of the engine crankshaft to generate a corresponding signal. A gear shift decision circuit is receptive of signals from the air flow sensor and vehicle speed sensor to define a gear shift control line on a two-dimensional coordinate system as a function of the received input signals on respective coordinate axes. The derivative of the sensed air quantity is used to shift the gear shift control line to a higher speed side of the coordinate system to permit the transmission to effect downshift operation.</p> |
申请公布号 |
EP0007739(B1) |
申请公布日期 |
1982.09.29 |
申请号 |
EP19790301352 |
申请日期 |
1979.07.10 |
申请人 |
NISSAN MOTOR COMPANY, LIMITED |
发明人 |
MORIMOTO, YOSHIRO;USUI, KEIZABURO;MIZOTE, MASANORI |
分类号 |
F16H59/34;F16H59/42;F16H59/44;F16H59/74;F16H61/02;F16H61/18;(IPC1-7):60K20/00 |
主分类号 |
F16H59/34 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|