Method for controlling and adjusting the starting mode of an internal combustion engine
First Claim
1. Method of controlling and regulating the startup operation of an internal combustion engine in which a rail pressure is compared with a limit value on activation of the startup operation and a first or second mode is set as a function of this comparison, with the rail pressure being controlled in the first mode and the rail pressure being regulated in the second mode, wherein the first time the second mode is set, it is retained for the remaining startup operation.
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Abstract
For controlling and regulating the startup operation of an internal combustion engine (1) a method is proposed in which a rail pressure is compared with a limit value on activation of the startup operation. Depending on this comparison, a first or second mode is set, whereby the rail pressure (pCR) for the startup operation is controlled in the first mode and is regulated in the second mode. It is provided according to this invention that after the initial setting of the second mode, that mode is retained for the remaining startup operation. This achieves the advantage that high-pressure fluctuations due to alternating modes are effectively prevented.
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Citations
14 Claims
- 1. Method of controlling and regulating the startup operation of an internal combustion engine in which a rail pressure is compared with a limit value on activation of the startup operation and a first or second mode is set as a function of this comparison, with the rail pressure being controlled in the first mode and the rail pressure being regulated in the second mode, wherein the first time the second mode is set, it is retained for the remaining startup operation.
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8. Apparatus for controlling and regulating the startup operation of an internal combustion engine, comprising:
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a fuel injection rail; a fuel injection rail pressure sensor; a fuel injection rail pressure regulator; and a fuel injection rail pressure controller, wherein the rail pressure controller compares a rail pressure sensed by the pressure sensor with a limit value on activation of the startup operation and sets a first or second mode for operation of the rail pressure regulator to control of rail pressure based on the results of the comparison, and wherein the first time the second mode is set, it is retained for the remainder of the startup operation. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification