TPMS Valve ID Registration via Power Supply Detection
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Solution Overview
Problem
Existing vehicle information processing technologies require significant labor and equipment for ID registration and verification, particularly in the production and maintenance of vehicles, as they often necessitate manual intervention and special equipment to generate trigger signals.
Innovation Solution
A vehicle information processing apparatus that includes a controller which shifts into verification or ID registration modes based on regular signal transmissions from vehicle information obtaining devices, eliminating the need for manual labor and special equipment by using power supply conditions to manage these processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual ID registration using a commander and cable connection is used, then ID registration can be performed, but labor requirements and equipment needs increase significantly
Solution Approach 1:
The transmitter automatically transmits its ID signal when power is supplied, eliminating the need for manual intervention. The system performs self-registration by detecting the power supply state and autonomously sending identification signals to the receiver, which then automatically stores the ID in EEPROM.
Solution Approach 2:
The ID registration function is built into the transmitter and receiver systems in advance. The transmitters are pre-configured to automatically transmit their IDs upon power supply, and the receiver is pre-programmed to detect these signals and store them, making the registration process automatic without requiring external equipment.
2Reliability
If forced tire air pressure change method is used for ID registration, then ID registration can be achieved, but equipment complexity and labor increase
Solution Approach 1:
The transmitter uses its own power supply state to trigger automatic ID transmission. When power is supplied to the transmitter, it automatically detects this state and transmits its ID signal without requiring any external equipment to generate trigger signals or change physical conditions.
Solution Approach 2:
The mechanical method of changing tire air pressure to generate trigger signals is replaced with an electrical/electronic solution. The transmitter's internal power supply circuitry detects the power state and electronically triggers the ID transmission, eliminating the need for mechanical intervention and specialized equipment.
3Reliability
If verification process requires external trigger signal generation equipment, then verification can be performed, but labor and equipment requirements increase
Solution Approach 1:
The transmitter automatically transmits signals when power is supplied, enabling the receiver to verify transmission states without external equipment. The system uses its own operational states (power supply, signal transmission) to generate the verification data needed.
Solution Approach 2:
The transmitter periodically transmits signals at predetermined cycles after power is supplied. This periodic transmission allows the receiver to verify the transmission state by receiving signals at expected intervals, eliminating the need for external trigger equipment while maintaining verification reliability.
4Reliability
If cable connection and commander operation are required for verification, then transmission state can be verified, but productivity decreases due to manual labor
Solution Approach 1:
The system performs self-verification by automatically transmitting signals during normal operation. The receiver continuously monitors for these automatic transmissions and verifies transmission states without requiring manual cable connections or commander operations, significantly improving verification efficiency.
Solution Approach 2:
The transmitter continuously transmits signals at predetermined cycles during its operational period. This continuous automatic transmission allows for ongoing verification of transmission states without interrupting normal system operation or requiring periodic manual verification procedures.
Data Source
AI summary
A vehicle information processing apparatus provided in a vehicle is provided with a TPMS valve that includes an air pressure sensor which obtains a tire air pressure as wheel information and a wheel-side communication device that transmits the wheel information and an ID unique to that wheel-side communication device at regular intervals; an ECU which receives the wheel information from the wheel-side communication device in each TPMS valve via a vehicle body-side communication device and processes that wheel information; and an onboard battery which supplies power to the ECU. Upon receiving a command to shift into a verification mode while power is being supplied from the onboard battery, the ECU performs a predetermined verification based on a signal transmitted at regular intervals from each wheel-side communication device. After receiving the command to shift into the verification mode, the ECU remains in the verification mode until a preset condition is satisfied.