Diagnostic communication interface unit for an adaptive braking system
First Claim
1. A diagnostic communication interface unit for use with a heavy vehicle having an antilock braking system, an integrally mounted antilock ECU and a J1587 serial communication bus connection, said diagnostic communication interface unit comprising:
- a portable housing containing electrical circuit components;
a cable for connecting said housing to the J1587 serial bus connection for establishing a communication link between the circuit components in said housing and the antilock ECU;
a light mounted on said housing for indicating a communication link has been established between the circuit components in said housing and the antilock ECU;
a plurality of lights mounted on said housing and being responsive to the circuit components in said housing for indicating a fault in the antilock braking system; and
,a PC serial port disposed on said portable housing for connecting to a PC and permitting when the PC is connected communication between the PC and the antilock ECU.
1 Assignment
0 Petitions
Accused Products
Abstract
A remote fault indicating unit (12) for an electronic system, such as a vehicle adaptive braking system, includes a series of visual indicators, such as light emitting diodes (50-59), on one surface of the housing and a computer serial port connector (13) for use when troubleshooting is done with a PC (18) equipped with the appropriate software. Each of the indicators (50-59) is activated in response to a predetermined malfunction sensed in the system, such as a defective speed sensor, defective modulator, or a defect in the electronic circuitry. The indicators (50-59) are reset with a switch (15) when the system is repaired. When the reset switch (15) is activated, all of the indicators (50-59) flash on and are then turned off. The reset switch (15) can also be activated for a longer period of time changing the ECU (14) configuration. A non-volatile RAM stores, in the ABS ECU (14), suspected problems sensed by the antilock system when the system is powered down, so that all malfunctions are again indicated immediately when the ABS is powered up.
35 Citations
15 Claims
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1. A diagnostic communication interface unit for use with a heavy vehicle having an antilock braking system, an integrally mounted antilock ECU and a J1587 serial communication bus connection, said diagnostic communication interface unit comprising:
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a portable housing containing electrical circuit components; a cable for connecting said housing to the J1587 serial bus connection for establishing a communication link between the circuit components in said housing and the antilock ECU; a light mounted on said housing for indicating a communication link has been established between the circuit components in said housing and the antilock ECU; a plurality of lights mounted on said housing and being responsive to the circuit components in said housing for indicating a fault in the antilock braking system; and
,a PC serial port disposed on said portable housing for connecting to a PC and permitting when the PC is connected communication between the PC and the antilock ECU. - View Dependent Claims (2, 3, 4)
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5. A system for diagnosing a heavy truck ABS comprising:
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an ECU; a J1587 serial bus connected to said ECU; a J1587 serial bus connection; a diagnostic communication interface unit connected to said J1587serial bus connection and communicating through said J1587 serial bus with said ECU having a plurality of lights which use information from said ECU for indicating the status of the ABS; and
,said diagnostic communication interface unit includes a PC serial port for connecting to a PC. - View Dependent Claims (6, 7, 8)
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9. A diagnostic communication interface unit for use with a heavy vehicle having an antilock braking system, an integrally mounted antilock ECU and a diagnostic serial communication bus, said diagnostic communication interface unit comprising:
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a portable housing containing a plurality of electrical circuit components; a connection for connecting said portable housing to the diagnostic serial communication bus for establishing a communication link between the circuit components in said housing and the antilock ECU; a plurality of lights mounted on said portable housing and being responsive to the circuit components in said housing for indicating a fault in the antilock braking system; and
,a PC serial port disposed on said portable housing for connecting to a PC and permitting when the PC is connected communication between the PC and the antilock ECU. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification