초록 ▼

A plurality of control systems mounted on a vehicle such as an automobile, and provided for different controlled objects are respectively made of control computers. These control computers are linked by a common data bus. These computers exclusively execute, for example, an engine control, a transmi

A plurality of control systems mounted on a vehicle such as an automobile, and provided for different controlled objects are respectively made of control computers. These control computers are linked by a common data bus. These computers exclusively execute, for example, an engine control, a transmission control, a brake control, a suspension control, and a auto drive control. The data bus is further connected to a diagnosis computer. Each control computer detects a signal from the sensor provided corresponding to each controlled object, and outputs the detect signal to the data bus. Each control computer executes the logical operation for its control on the basis of its detect signal and various data transferred to the data bus. The diagnosis computer supervises an operating state of each control system on the basis of the data transferred to the data bus. When an abnormality is detected, the diagnosis computer stores this data in a large-capacity memory, and displays the abnormality.

대표청구항 ▼

An overall diagnosis apparatus for vehicle mounted control devices comprising: a plurality of control computers respectively provided for a plurality of electronic control systems mounted on a vehicle, said control computers respectively executing the controls exclusively for these control systems;

An overall diagnosis apparatus for vehicle mounted control devices comprising: a plurality of control computers respectively provided for a plurality of electronic control systems mounted on a vehicle, said control computers respectively executing the controls exclusively for these control systems; data transfer means for linking all of said control computers to allow data communication among said control computers; and a diagnosis computer connected to said transfer means, said diagnosis computer diagnosing operation of at least one of said electronic control systems to produce a diagnostic result, diagno0sis of each said at least one electronic control system being on the basis of related data transferred through said transfer means from at least two of said control computers.