Control device for rotary engine
AssigneeMazda Motor Corporation
InventorsTakaaki Takemitsu, Koji Bekki
Life of this patent
Estimating the term…
Abstract
A control device prevents damage due to backward rotation of a rotary engine and prevents misjudgment of backward rotation of the rotary engine. The control device for a rotary engine includes a motor mechanically connected to the shaft of the rotary engine, a controller (a motor ECU) that performs energization control of the motor to start the rotary engine by driving the motor, and a sensor (such as a motor rotation sensor). When starting the rotary engine, the controller stops energization to the motor based on an electric signal from the sensor when the shaft of the rotary engine rotates backward a predetermined angle or more, and then the shaft of the rotary engine continues to rotate backward for a predetermined time.
Claims16
A control device for a rotary engine, the control device comprising:
- a rotary engine having an intake port opened in a side housing;
- a motor mechanically connected to a shaft of the rotary engine;
- a controller that performs energization control of the motor so as to start the rotary engine by driving the motor;
- and
- a sensor that outputs an electric signal concerning a rotation direction of the rotary engine to the controller,
- wherein the controller stops energization to the motor based on the electric signal from the sensor when the shaft of the rotary engine rotates backward a predetermined angle or more and then the shaft of the rotary engine continues to rotate backward for a predetermined time at a start of the rotary engine.
Dependencies are inferred from the claim text.