A METHOD OF PREDICTING THROTTLE POSITION BASED ON ENGINE SPEED SIGNAL AND A VEHICLE USING THE SAME

• Main Authors: BHUSHAN DAS, HIMADRI, JABEZ DHINAGAR, SAMRAJ
• Format: Patent
• Language: English
• Published: 10.12.2014
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; WEAPONS

A method is disclosed for predicting a throttle position in a vehicle. A crank position sensor generates a signal indicative of engine speed received by an Electronic Control Unit (ECU) which calculates the engine speed based on this signal. The throttle position is estimated based on a filtered average engine speed value and a rate of change of the engine speed. The predicted throttle position is used with the engine speed for calculating the ignition timing. This method can eliminate the need of a throttle position sensor in a vehicle.