Toyota jidosha kabushiki kaisha (20240309824). ENGINE CONTROLLER simplified abstract
Contents
- 1 ENGINE CONTROLLER
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 ENGINE CONTROLLER - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Key Features and Innovation
- 1.6 Potential Applications
- 1.7 Problems Solved
- 1.8 Benefits
- 1.9 Commercial Applications
- 1.10 Questions about Air-Fuel Ratio Sub-Feedback Control
- 1.11 Original Abstract Submitted
ENGINE CONTROLLER
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Kenji Inoshita of Okazaki-shi (JP)
ENGINE CONTROLLER - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240309824 titled 'ENGINE CONTROLLER
Simplified Explanation
An engine controller adjusts the air-fuel ratio based on feedback from an air-fuel ratio sensor. When the rear air-fuel ratio reaches certain values, the controller switches between rich and lean air-fuel ratios to maintain optimal engine performance.
Key Features and Innovation
- Air-fuel ratio sub-feedback control system
- Switching between rich and lean air-fuel ratios based on rear air-fuel ratio
- Variable adjustment of lean determination value based on amount of overshoot
- Optimization of engine performance by adjusting air-fuel ratio
Potential Applications
This technology can be applied in automotive engines, motorcycles, and other combustion engines to improve fuel efficiency and reduce emissions.
Problems Solved
- Maintaining optimal air-fuel ratio for engine performance
- Enhancing fuel efficiency and reducing emissions
- Improving overall engine operation and longevity
Benefits
- Increased fuel efficiency
- Reduced emissions
- Enhanced engine performance and longevity
Commercial Applications
This technology can be utilized by automotive manufacturers, engine design companies, and aftermarket tuning companies to improve the performance and efficiency of combustion engines.
Questions about Air-Fuel Ratio Sub-Feedback Control
How does the controller determine when to switch between rich and lean air-fuel ratios?
The controller switches based on the rear air-fuel ratio detected by the sensor.
What are the potential benefits of using this technology in automotive engines?
The benefits include improved fuel efficiency, reduced emissions, and enhanced engine performance.
Original Abstract Submitted
an engine controller performs air-fuel ratio sub-feedback control in which a target air-fuel ratio is switched from a rich air-fuel ratio to a lean air-fuel ratio when a rear air-fuel ratio detected by an air-fuel ratio sensor becomes less than or equal to a rich determination value, and the target air-fuel ratio is switched from the lean air-fuel ratio to the rich air-fuel ratio when the rear air-fuel ratio becomes greater than or equal to a lean determination value. to perform the sub-feedback control, the controller variably sets the lean determination value to a value indicating a leaner air-fuel ratio when an amount of overshoot of the rear air-fuel ratio to a richer value than a stoichiometric air-fuel ratio after switching the target air-fuel ratio from the rich air-fuel ratio to the lean air-fuel ratio is relatively large than when the amount of overshoot is relatively small.
