Operating method and device for a gas-operated internal combustion engine
First Claim
1. A method for a gas-operated internal combustion engine comprising:
- an electronic control unit defining a desired gas pressure in a gas-injection system of the internal combustion engine as a function of operating conditions of the internal combustion engine, the operating conditions including at least one of a rotational speed, a torque, and a load of the internal combustion engine; and
the electronic control unit matching the desired pressure in the gas-injection system at least by;
evaluating signals from a pressure sensor and a temperature sensor; and
generating actuating signals for controlling a shutoff valve, a pressure reducer or pressure controller, and a pressure-release valve.
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Accused Products
Abstract
The invention relates to an operating method and to a device for a gas-driven internal combustion engine. According to the invention, the pressure in a gas injection system is adapted to the operational state of the internal combustion engine. A higher pressure is adjusted in the gas injection system during a higher charge of the internal combustion engine. Said higher pressure enables a higher volume flow through the gas injection valves associated with the gas injection system. The power produced by the internal combustion engine can be optimized. A lower pressure in the gas injection system is adjusted in the event of a lower charge or if the internal combustion engine is switched off. The lower pressure emits lower pollutant emissions which are produced by the internal combustion engine. The invention is characterized by a bi-directional interface between a control device and a pressure reducer or pressure controller.
15 Citations
10 Claims
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1. A method for a gas-operated internal combustion engine comprising:
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an electronic control unit defining a desired gas pressure in a gas-injection system of the internal combustion engine as a function of operating conditions of the internal combustion engine, the operating conditions including at least one of a rotational speed, a torque, and a load of the internal combustion engine; and the electronic control unit matching the desired pressure in the gas-injection system at least by; evaluating signals from a pressure sensor and a temperature sensor; and generating actuating signals for controlling a shutoff valve, a pressure reducer or pressure controller, and a pressure-release valve. - View Dependent Claims (2, 3, 4, 5)
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6. A device for a gas-operated internal combustion engine, comprising:
a module having; a shutoff valve, a pressure sensor, a temperature sensor, a pressure reducer or pressure controller, a pressure-release valve, and an electronic control unit configured to; define a desired gas pressure in a gas-injection system of the internal combustion engine as a function of one or more operating conditions of the internal combustion engine; and match the desired pressure in the gas-injection system at least by evaluating signals from the pressure sensor and the temperature sensor, and generating actuating signals for controlling the shutoff valve, the pressure reducer or pressure controller, and the pressure-release valve. - View Dependent Claims (7, 8, 9, 10)
Specification