Engine throttle valve controller

Abstract

Abstract PURPOSE:To improve the engine response upon abrupt acceleration/deceleration, by increasing the throttle valve open/close speed when the speed variation of the acceleration stepping has exceeded over predetermined level. CONSTITUTION:Under travelling of a car, the stepping of an accelerator pedal 1 is detected by an accelerator opening detector 2 to feed a signal through an amplifier 3 to a differential amplifier 4, then a difference against a signal from a throttle valve opening detector 10 is produced to drive a motor 8 thus to control a throttle valve 9. The output from an accelerator opening detector 2 is provided to a differentiator 11 then compared with a setting in a comparator 12, and if it is higher than the setting the amplification factor of the amplifier 3 is increased. Consequently upon abrupt acceleration/deceleration of engine, the open/close speed of the throttle valve 9 is increased to improve the response.

Inventors

• 👤 Nobuo Takeuchi
• 👤 暢男 竹内
• 👤 Tadashi Kaneko
• 👤 金子　忠志
• 👤 Tadataka Nakasumi
• 👤 中角　忠孝
• 👤 Katsuhiko Yokooku
• 👤 横奥　克日子

Bibliographic Details