Failure memory device
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsTsutomu Kubozono, Minoru Tatemoto, Shigeaki Hirano, Hirotoshi Maekawa
Life of this patent
Estimating the term…
Abstract
A failure hysteresis memory device which is constructed with a vehicle-side connector to be connected to a plurality of electronic control devices mounted on the vehicle; a tester-side connector to be connected to a trouble-diagnosis multi-function tester or a display device; signal conversion device for converting a signal from the vehicle-side connector to produce an output signal to the tester-side connector; a memory unit to store therein the output signal converted by the signal conversion means; and a micro-computer which processes information contained in the input signal and controls the constituent members.
Claims4
device for recording vehicular failures which comprises:
- a vehicle-side connector to be connected to a plurality of electronic control devices which are mounted in a vehicle wherein said connector has a plurality of pins which can send and receive a plurality of signals;
- a tester-side connector, to be connected to a trouble-diagnosis multi-function tester or a display device and which has a plurality of pins which can send and receive signals;
- signal conversion means which converts analog signals received from said pins in said vehicle-side connector to produce a digital output signal on said pins in said tester-side connector;
- a memory unit to store therein the output signal converted by said signal conversion means;
- a micro-computer which processes information contained in a signal produced by said vehicle-side connector and which controls said signal conversion means and said memory means;
- and
- a multiplexer controlled by said micro-computer for selecting a given signal from the plurality of signals produced on the pins of said vehicle-side connector and for dynamically reconfiguring the connections between said vehicle-side connector and said tester-side connector.
Dependencies are inferred from the claim text.