Vehicular controller
First Claim
1. A vehicular controller for controlling a vehicular component, the vehicular controller comprising:
- a control CPU that executes control processing for the vehicular component;
a monitoring CPU that executes monitoring processing for the control CPU;
a communication device provided between the control CPU and the monitoring CPU; and
a memory device that is connected with the monitoring CPU and stores monitoring data for monitoring the control CPU, wherein the control CPU transmits monitoring data to the monitoring CPU, and the monitoring CPU updates monitoring data stored in the memory device with the monitoring data transmitted from the control CPU when the monitoring data stored in the memory device is not correct.
2 Assignments
0 Petitions
Accused Products
Abstract
A vehicular engine control unit has multi-CPU configuration. A main CPU executes a control processing subject to a monitoring processing and transmits monitoring data to a sub-CPU. The sub-CPU executes the monitoring processing based on the received monitoring data. The control processing executed by the main CPU and a control characteristic may be changed or modified in accordance with an engine capacity, a vehicle equipment or the like. Similarly, the monitoring data stored in a memory connected with the main CPU is also changed in accordance with the control characteristic and the like. Therefore, the sub-CPU can be commonly used for several arrangements or the control characteristics of the main CPU.
-
Citations
10 Claims
-
1. A vehicular controller for controlling a vehicular component, the vehicular controller comprising:
-
a control CPU that executes control processing for the vehicular component;
a monitoring CPU that executes monitoring processing for the control CPU;
a communication device provided between the control CPU and the monitoring CPU; and
a memory device that is connected with the monitoring CPU and stores monitoring data for monitoring the control CPU, wherein the control CPU transmits monitoring data to the monitoring CPU, and the monitoring CPU updates monitoring data stored in the memory device with the monitoring data transmitted from the control CPU when the monitoring data stored in the memory device is not correct. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification