Harness with rodent control
A fault detection system for a vehicle is shown. The system includes an electrical control unit configured to control one or more electrical systems on the vehicle, a power source, and a wire harness. The wire harness includes a plurality of wires, the plurality of wires including (i) a first wire electrically coupled to the electrical control unit and one or more sensors and (ii) a second wire electrically coupled to the power source and at least one of the one or more electrical systems. The second wire is enclosed within a protective covering. The electrical control unit is configured to monitor a resistance or conductance of the second wire via the one or more sensors and detect a wire conductivity fault in the second wire.
1 . A fault detection system for a vehicle, the system comprising:
an electrical control unit configured to control one or more electrical systems on the vehicle;
a power source;
a wire harness comprising a plurality of wires, the plurality of wires including (i) a first wire electrically coupled to the electrical control unit and one or more sensors and (ii) a second wire electrically coupled to the power source and at least one of the one or more electrical systems, the second wire is enclosed within a protective covering and wherein the first wire is electrically connected to the second wire at a plurality of pairs of connection points defining a plurality of sections of the second wire within the protective covering;
wherein the electrical control unit is configured to:
obtain a resistance or conductance of each of the plurality of sections of the second wire via the one or more sensors; and
detect a wire conductivity fault in the second wire.
2 . The system of claim 1 , wherein the electrical control unit is further configured to:
measure the resistance or conductance of the second wire via one of the one or more sensors electrically coupled to the first wire, wherein the wire harness comprises the one or more sensors;
provide the resistance or conductance to the electrical control unit to determine whether the resistance or conductance is within a predetermined range;
determine that the wire conductivity fault has occurred in the second wire in response to the resistance or conductance being outside of the predetermined range; and
provide a notification to an operator of the vehicle indicating the wire conductivity fault.
3 . The system of claim 1 , wherein the electrical control unit is further configured to:
receive measurements of resistance or conductance of each of the plurality of sections of the second wire;
determine that one of the measurements of resistance or conductance of each of the plurality of sections of the second wire is indicative of the wire conductivity fault; and
provide a notification to an operator of the vehicle regarding the wire conductivity fault.
4 . The system of claim 1 , wherein the plurality of wires are covered with a protective sleeve independent of the wire harness, the protective sleeve configured to deter rodents from detecting the wire harness, biting the wire harness, or both.
5 . The system of claim 1 , wherein the plurality of wires are covered with a protective jacket that is integral to the wire harness, the protective jacket configured to deter rodents from detecting the wire harness, biting the wire harness, or both.
6 . The system of claim 1 , wherein monitoring the resistance or conductance of the second wire via the one or more sensors comprises:
providing a low-voltage test signal to the one or more sensors prior to start-up of the vehicle;
determining the low-voltage test signal is indicative of the wire conductivity fault within the second wire in response to the low-voltage test signal being outside of a predetermined range; and
providing a notification to an operator of the vehicle regarding the wire conductivity fault.
7 . The system of claim 1 , wherein the protective covering is a sheath, a loom, or a jacket.
8 . The system of claim 1 , wherein the electrical control unit is further configured to:
monitor, for each of a plurality of insulation layers, a resistance or conductance, the wire harness comprising the plurality of insulation layers; and
detect an insulation layer conductivity fault in each of two or more of the plurality of insulation layers.
9 . The system of claim 8 , wherein the electrical control unit is further configured to:
provide a first alarm to an operator of the vehicle indicating the insulation layer conductivity fault in each of two or more of the plurality of insulation layers, the first alarm comprising a first intensity; and
in response to detecting both the wire conductivity fault in the second wire and the insulation layer conductivity fault in each of two or more of the plurality of insulation layers, provide a second alarm to the operator of the vehicle, the second alarm comprising a second intensity greater than the first intensity.
10 . A fault detection system for a vehicle, the system comprising:
an electrical control unit configured to control one or more electrical systems on the vehicle;
a power source;
a wire harness comprising a plurality of insulation layers and a plurality of wires, the plurality of wires including (i) a first wire electrically coupled to the electrical control unit and one or more sensors and (ii) a second wire electrically coupled to the power source and at least one of the one or more electrical systems, the second wire is enclosed within the plurality of insulation layers;
wherein the electrical control unit is configured to:
obtain a resistance of each of the plurality of insulation layers,
obtain a resistance of the second wire via the one or more sensors; and
detect a wire conductivity fault within the plurality of insulation layers based on the resistance of each of the plurality of insulation layers and the second wire based on the resistance of the second wire.
11 . The system of claim 10 , wherein the electrical control unit is further configured to:
measure the resistance of the second wire via one of the one or more sensors electrically coupled to the first wire, wherein the wire harness comprises the one or more sensors;
provide the resistance to the electrical control unit to determine whether the resistance is within a predetermined range;
determine that the wire conductivity fault has occurred in the second wire in response to the resistance being outside of the predetermined range; and
provide a notification to an operator of the vehicle indicating the wire conductivity fault.
12 . The system of claim 10 , wherein the electrical control unit is further configured to:
measure the resistance of the second wire at at least a first location, second location and third location via the one or more sensors electrically coupled to the first wire, wherein the wire harness comprises the one or more sensors;
receive measurements of resistance at the first location, the second location, and the third location;
determine that one of the measurements of resistance at the first location, the second location, and the third location is indicative of the wire conductivity fault; and
provide a notification to an operator of the vehicle regarding the wire conductivity fault.
13 . The system of claim 10 , wherein the plurality of wires are covered with a protective sleeve independent of the wire harness, the protective sleeve configured to deter rodents from detecting the wire harness, biting the wire harness, or both.
14 . The system of claim 10 , wherein the plurality of wires are covered with a protective jacket that is integral to the wire harness, the protective jacket configured to deter rodents from detecting the wire harness, biting the wire harness, or both.
15 . The system of claim 10 , wherein monitoring the resistance of the second wire via the one or more sensors comprises:
providing a low-voltage test signal to the one or more sensors prior to start-up of the vehicle;
determining the low-voltage test signal is indicative of the wire conductivity fault within the second wire in response to the low-voltage test signal being outside of a predetermined range; and
providing a notification to an operator of the vehicle regarding the wire conductivity fault.
16 . The system of claim 10 , wherein the plurality of insulation layers define a protective covering.
17 . The system of claim 10 , wherein the electrical control unit is further configured to:
provide a first alarm to an operator of the vehicle indicating the insulation layer conductivity fault in each of two or more of the plurality of insulation layers, the first alarm comprising a first intensity; and
in response to detecting both the wire conductivity fault in the second wire and the insulation layer conductivity fault in each of two or more of the plurality of insulation layers, provide a second alarm to the operator of the vehicle, the second alarm comprising a second intensity greater than the first intensity.
18 . A controller comprising a processing circuit configured to:
monitor connectivity of a wire harness comprising a plurality of wires, the plurality of wires including (i) a first wire electrically coupled to an electrical control unit and one or more sensors and (ii) a second wire electrically coupled to a power source and at least one of one or more electrical systems, the second wire is enclosed within a protective covering, wherein the one or more sensors are electrically wired to the second wire at a plurality of points within the protective covering defining a plurality of sections of the second wire;
obtain a resistance or conductance for each of the plurality of sections of the second wire via the one or more sensors;
detect a wire conductivity fault in the second wire; and
provide a notification to an operator of a vehicle indicating the wire conductivity fault.
19 . The controller of claim 18 , wherein the electrical control unit is further configured to:
measure the resistance or conductance of the second wire via one of the one or more sensors electrically coupled to the first wire, wherein the wire harness comprises the one or more sensors;
provide the resistance or conductance to the electrical control unit to determine whether the resistance or conductance is within a predetermined range; and
determine that the wire conductivity fault has occurred in the second wire in response to the resistance or conductance being outside of the predetermined range.
20 . The controller of claim 18 , wherein the electrical control unit is further configured to:
receive measurements of resistance or conductance for each of the plurality of wire sections;
determine that one of the measurements of resistance or conductance for each of the plurality of wire sections indicative of the wire conductivity fault; and
provide a notification to an operator of the vehicle regarding the wire conductivity fault.