Multiple electronic control unit diagnosing system and method for vehicle
First Claim
1. A multiple electronic control unit (ECU) diagnosing system for a vehicle, comprising:
- diagnostic equipment installed in the vehicle and having multiple diagnostic information software (MDIS) to provide diagnostic instructions for a plurality of ECUs and to transmit and receive signals;
a multiple diagnostic protocol (MDP) which is an Ethernet communication protocol having a data structure for multiple diagnoses between the diagnostic equipment and a gateway of the vehicle; and
a diagnostic distribution system (DDS) for analyzing the MDP and performing diagnosis communications with the ECUs connected to the gateway through a network,wherein the diagnostic equipment and the DDS of the gateway are connected to each other through an Ethernet communication network, andwherein the plurality of ECUs, which transmit and receive diagnostic information to and from the DDS, are connected to each other through different communication networks or through one identical communication network.
1 Assignment
0 Petitions
Accused Products
Abstract
A multiple electronic control unit (ECU) diagnosing system and a method thereof for a vehicle by which a diagnosis time for an ECU can be shortened by using an Ethernet protocol and a communication gateway. The multiple ECU diagnosing system for the vehicle applies a multiple ECU diagnosing algorithm of a one-to-n method which is more efficient than a diagnosis algorithm of a one-to-one method between diagnostic equipment. ECUs for the vehicle are connected through various communication networks (K-Line, CAN, LIN, FlexRay, and MOST) by using a communication gateway transferring messages and signals between the ECUs, thus significantly shortening a diagnosis time for the ECUs and acquiring a large amount of diagnosis information at the same time.
-
Citations
6 Claims
-
1. A multiple electronic control unit (ECU) diagnosing system for a vehicle, comprising:
-
diagnostic equipment installed in the vehicle and having multiple diagnostic information software (MDIS) to provide diagnostic instructions for a plurality of ECUs and to transmit and receive signals; a multiple diagnostic protocol (MDP) which is an Ethernet communication protocol having a data structure for multiple diagnoses between the diagnostic equipment and a gateway of the vehicle; and a diagnostic distribution system (DDS) for analyzing the MDP and performing diagnosis communications with the ECUs connected to the gateway through a network, wherein the diagnostic equipment and the DDS of the gateway are connected to each other through an Ethernet communication network, and wherein the plurality of ECUs, which transmit and receive diagnostic information to and from the DDS, are connected to each other through different communication networks or through one identical communication network. - View Dependent Claims (2)
-
-
3. A multiple electronic control unit (ECU) diagnosing method for a vehicle, comprising:
-
inputting diagnosis request information for multiple diagnoses of a plurality of ECUs through MDIS; transmitting the input diagnosis request information toward a gateway of the vehicle connected from diagnostic equipment through an Ethernet communication network in the form of an MDP; transmitting the MDP transmitted from the MDIS through the Ethernet communication network to a DDS of the gateway of the vehicle; analyzing information on an ECU to be diagnosed from the MDP and performing diagnostic communications with the ECUs in the DDS; transmitting a response message on the diagnosis request information through a communication network to the DDS in the respective ECUs; recombining the response message of the ECU collected by the DDS and transmitting the response message to the MDIS of the diagnostic equipment through the Ethernet communication network; and analyzing the recombination information of the MDP and providing multiple diagnosis results for the ECUs to a user, wherein when the multiple diagnoses for the plurality of ECUs is performed, the diagnostic equipment and the DDS of the gateway is connected to the Ethernet communication network and the DDS, and wherein the plurality of ECUs transmit and receive diagnostic information through different communication networks or through one identical communication network. - View Dependent Claims (4, 5, 6)
-
Specification