Robert bosch gmbh (20250012669). METHOD FOR DETECTING AN OPEN LOAD FAULT
Contents
METHOD FOR DETECTING AN OPEN LOAD FAULT
Organization Name
Inventor(s)
Andreas Schwaerzle of Stuttgart (DE)
Florian Dencker of Oehringen (DE)
Wolfram Schreiber of Schwaikheim (DE)
METHOD FOR DETECTING AN OPEN LOAD FAULT
This abstract first appeared for US patent application 20250012669 titled 'METHOD FOR DETECTING AN OPEN LOAD FAULT
Original Abstract Submitted
a method for detecting an open load fault of a wideband lambda sensor of a motor vehicle. the wideband lambda sensor includes at least one heater. the method includes: a) enabling a fault check, wherein a temperature model is used to check if the wideband lambda sensor () is sufficiently heated; b) carrying out the fault check; if no fault is detected according to the fault check, the following step is carried out: b1) concluding the method with a result of ok; if a fault is detected according to the fault check, the following step is carried out: b2) concluding the method with a result of not ok; before step b) is carried out, the necessity of overheating protection is checked, and if the overheating protection is necessary, a heater voltage of the heater is reduced simultaneously with step a) or before step a) is carried out.
