Sensor device for detecting and transmitting vehicle motion data
First Claim
1. A sensor device for a vehicle having a communication network and a plurality of electronic control units for vehicle controls, the sensor device comprising:
- motion detecting means for detecting motions of a vehicle;
storage means capable of updating stored content and holds the stored content in case a power supply is interrupted;
updating means for updating the content stored in the storage means in a manner that results detected by the motion detecting means are stored in the storage means for a holding period;
collision detecting means for detecting a collision of the vehicle from acceleration exerted on the vehicle;
storage-holding means which, when the collision is detected by the collision detecting means, discontinues operation of the updating means and holds the content stored in the storage means; and
transmission means for transmitting the results detected by the motion detecting means and stored in the storage means, wherein the storage means, the updating means, the collision detecting means and the storage-holding means are connected to the plurality of electronic control units through the communication network so that the results detected by the motion detecting means are transmitted to the electronic control units through the communication network.
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Accused Products
Abstract
A sensor device is arranged in a compartment near the center of the vehicle, and transmits the motional data representing the motion of the vehicle obtained from sensors to other ECUs and devices connected to an in-vehicle LAN through a bus controller. The sensor device has a function of a drive recorder which stores the operation data (operating states of the accelerator pedal, steering wheel, brake pedal, etc.) together with the motional data in a memory. In case collision of the vehicle is detected by a collision G sensor, inhibits the writing into the memory after a standby period has passed, and holds the motional data and the operation data before and after the collision stored in the memory.
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Citations
5 Claims
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1. A sensor device for a vehicle having a communication network and a plurality of electronic control units for vehicle controls, the sensor device comprising:
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motion detecting means for detecting motions of a vehicle;
storage means capable of updating stored content and holds the stored content in case a power supply is interrupted;
updating means for updating the content stored in the storage means in a manner that results detected by the motion detecting means are stored in the storage means for a holding period;
collision detecting means for detecting a collision of the vehicle from acceleration exerted on the vehicle;
storage-holding means which, when the collision is detected by the collision detecting means, discontinues operation of the updating means and holds the content stored in the storage means; and
transmission means for transmitting the results detected by the motion detecting means and stored in the storage means, wherein the storage means, the updating means, the collision detecting means and the storage-holding means are connected to the plurality of electronic control units through the communication network so that the results detected by the motion detecting means are transmitted to the electronic control units through the communication network. - View Dependent Claims (2, 3, 4, 5)
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Specification