Method for assuring emergency driving functions for a vehicle ha

Internal-combustion engines – Charge forming device – Fuel injection system

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123381, 123359, F02M 3900

Patent

active

047919043

ABSTRACT:
The invention is directed to a method for assuring emergency driving functions with a diesel engine when the fuel temperature sensor fails, the diesel engine having a charging-air blower and a charging-air temperature sensor. The method includes performing a fuel temperature dependent correction of specific operating functions by taking the charging air temperature as a basis such that all functions corresponding to a fuel temperature of T.sub.K =+20.degree. C. are fulfilled at a charging air temperature of T.sub.L .gtoreq.0.degree. C. and all functions corresponding to a fuel temperature of T.sub.K =-10.degree. C. are fulfilled at a charging air temperature of T.sub.L <0.degree. C. The functions include the start control path, starting speed, idle speed, control path correction, and basic quantity control.

REFERENCES:
patent: 4174694 (1979-11-01), Wessell
patent: 4274381 (1981-06-01), Abo
patent: 4493304 (1985-01-01), Nakajima
patent: 4531495 (1985-07-01), Yamato
patent: 4541380 (1985-09-01), Oshizawa
patent: 4556029 (1985-12-01), Yamaguchi
patent: 4587615 (1986-05-01), Takahashi
patent: 4615321 (1986-10-01), Haefner

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