Toyota jidosha kabushiki kaisha (20240191666). ENGINE SYSTEM simplified abstract
ENGINE SYSTEM
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Susumu Araki of Toyota-shi (JP)
Takayuki Omachi of Nisshin-shi (JP)
ENGINE SYSTEM - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240191666 titled 'ENGINE SYSTEM
Simplified Explanation:
This patent application describes an engine system with a control device that can selectively cut fuel supply to one cylinder while increasing fuel injection in another cylinder to warm up a catalyst in the exhaust passage.
Key Features and Innovation:
- Fuel cut control unit stops fuel supply to one cylinder and increases fuel supply to another for catalyst warm-up.
- Injection amount control unit boosts fuel injection in the second cylinder during the fuel cut process.
- Injection timing control unit advances fuel injection timing in the compression stroke of the second cylinder during the fuel cut process.
Potential Applications: This technology can be applied in automotive engines to improve catalyst warm-up efficiency and reduce emissions.
Problems Solved: This innovation addresses the challenge of quickly warming up a catalyst in the exhaust system for optimal performance.
Benefits:
- Enhanced catalyst warm-up process
- Reduced emissions
- Improved engine efficiency
Commercial Applications: Potential commercial applications include automotive manufacturers looking to meet stringent emission regulations and improve engine performance.
Prior Art: Readers can explore prior patents related to engine control systems, fuel injection timing, and catalyst warm-up processes.
Frequently Updated Research: Stay updated on advancements in engine control systems, emission reduction technologies, and catalyst efficiency improvements.
Questions about Engine Control System with Catalyst Warm-up Technology: 1. How does this technology contribute to reducing harmful emissions from vehicles? 2. What are the potential cost implications for implementing this system in mass-produced vehicles?
Original Abstract Submitted
an engine system includes an engine including first and second cylinders, a catalyst provided in an exhaust passage of the engine, and a control device for the engine. the control device includes a fuel cut control unit configured to execute a specific cylinder fuel cut process of stopping supply of fuel to the first cylinder and supplying fuel to the second cylinder when there is a request to warm up the catalyst, an injection amount control unit configured to increase a fuel injection amount in the second cylinder at a predetermined increase rate during execution of the specific cylinder fuel cut process, as compared to a case where the specific cylinder fuel cut process is stopped, and an injection timing control unit configured to advance a fuel injection timing in a compression stroke of the second cylinder during execution of the specific cylinder fuel cut process is stopped.