US 11,641,290 B2 · Configurable OBD isolation

Abstract

An on-vehicle device for a driver monitoring system can be configured to be isolated from the vehicle bus while connected to the vehicle's OBD port. In a fully-isolated mode, the device only receives power and ground from the vehicle's OBD port and there is no other communication sent or received from the vehicle bus. In a passive mode, the device can obtain some information from the vehicle bus but does not request any information on the vehicle bus. The device may be undetectable on the vehicle bus. Optionally, the device receives commands via a communication interface to be switched among the three modes: fully active mode, fully isolated mode and passive mode. The commands may come from a server and may be communicated over the internet or over a cell network to a communication module on the device.

Claims19

Dependent claims

An on-board device for a vehicle monitoring system comprising:

an OBD interface for connecting to an OBD port of a vehicle;
and
a processor programmed to accumulate data received via the OBD interface, the processor further programmed to switch the OBD interface from a first mode to a second mode, wherein in the first mode the OBD interface can request and receive data via a vehicle data bus connected to the OBD interface, wherein in the second mode the OBD interface does not request or send any data on the vehicle data bus, wherein in the second mode the OBD interface is capable of receiving data on the vehicle data bus.

Dependencies are inferred from the claim text.

Configurable OBD isolation

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Configurable OBD isolation

Life of this patent

Abstract

Claims19