Patent ID: 6243009
Filing Date: 2001-06-05
Classification: B60Q

Abstract:
A method for monitoring a plurality of status criteria of a blinker-hazard flasher circuit including a number of blinker lights, said method comprising the following steps:a) generating a blinker-hazard output signal representing any one of said plurality of said status criteria;b) generating control signals in a control unit and supplying said control signals to a threshold signal generator (40);c) generating in said threshold signal generator (40), with reference to a base voltage (SW0) and in response to said control signals, sequentially lower threshold voltage signals corresponding in number to said plurality of status criteria;d) supplying said blinker-hazard output signal to a first input of a single comparator;e) supplying said sequentially lower threshold voltage signals to a second input of said single comparator;f) comparing in said single comparator said blinker-hazard output signal with said sequentially lower threshold voltage signals for producing different comparator output signals that are allocated to different specific status criteria of said plurality of status criteria; andg) processing said comparator output signals for further use.