VEHICLE SENSING SYSTEM USING DAISY CHAIN OF SENSORS
First Claim
1. A sensing system for a vehicle, said sensing system comprising:
- a plurality of sensors disposed at a vehicle;
wherein said plurality of sensors comprises individual sensors connected to a vehicle network using a daisy chain topology; and
a control, wherein outputs of said sensors are communicated to said control, and wherein said control, responsive to said outputs of said sensors, determines the presence of one or more objects exterior the vehicle and within the field of sensing of at least one of said sensors.
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Accused Products
Abstract
A sensing system for a vehicle includes a plurality of sensors disposed at the vehicle. The plurality of sensors includes individual sensors connected to a vehicle network using a daisy chain topology. A control determines an address of the sensors and calibrates the sensors. The control, responsive to determination that an individual sensor is not the last sensor of a daisy chain of sensors, adjusts the internal electrical configuration to provide an open connection for another sensor. The control, responsive to determination that an individual sensor is the last sensor of the daisy chain of sensors, adjusts the internal electrical configuration to provide a termination configuration. The control, responsive to the outputs of the sensors, determines the presence of one or more objects exterior the vehicle and within the field of sensing of at least one of the sensors.
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Citations
20 Claims
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1. A sensing system for a vehicle, said sensing system comprising:
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a plurality of sensors disposed at a vehicle; wherein said plurality of sensors comprises individual sensors connected to a vehicle network using a daisy chain topology; and a control, wherein outputs of said sensors are communicated to said control, and wherein said control, responsive to said outputs of said sensors, determines the presence of one or more objects exterior the vehicle and within the field of sensing of at least one of said sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for calibrating a plurality of sensors for a sensing system for a vehicle, said method comprising:
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providing a plurality of sensors configured to be disposed at a vehicle and electrically connected to a communication network of the vehicle; providing a control in communication with the communication network of the vehicle, wherein the control is operable to process data sensed by the sensors when the sensors are connected to the communication network of the vehicle; providing an input to the control that is indicative of the number of sensors that are to be connected to the communication network as part of a daisy chain of sensors; connecting the sensors to the communication network of the vehicle; responsive to determination that a given connected sensor is connected to the communication network, calibrating the given connected sensor; determining via the control whether a given connected sensor is the last sensor of the daisy chain of sensors; responsive to determination that a given connected sensor is not the last sensor of the daisy chain of sensors, adjusting the internal electrical configuration to provide an open connection for another sensor; and responsive to determination that a given connected sensor is the last sensor of the daisy chain of sensors, adjusting the internal electrical configuration to provide a termination configuration. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A sensing system for a vehicle, said sensing system comprising:
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a plurality of sensors disposed at a vehicle and electrically connected to a communication network of the vehicle; a control in communication with the communication network of the vehicle, wherein said control is operable to receive data sensed by said sensors via the communication network and to process the data sensed by said sensors; wherein said control receives an input that is indicative of the number of sensors that are connected to the communication network as part of a daisy chain of sensors; wherein said control is operable to determine address of the individual sensors at the communication network and to individually calibrate the individual sensors based at least in part on the determined address; responsive at least in part to the input, said control determines whether an individual sensor is the last sensor of said daisy chain of sensors; responsive to determination that an individual sensor is not the last sensor of said daisy chain of sensors, said control adjusts the internal electrical configuration to provide an open connection for another sensor; responsive to determination that an individual sensor is the last sensor of said daisy chain of sensors, said control adjusts the internal electrical configuration to provide a termination configuration; and wherein, with said sensors calibrated, said control processes data sensed by said sensors for at least one of automated parking, blind spot detection, cross traffic alert, lane change and merge aid, automatic emergency braking, pedestrian detection, turn assist, and intersection collision mitigation. - View Dependent Claims (20)
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Specification