---
title: "Odometer/Trip Computer"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:ODOMETERTRIP_COMPUTER"
  data_integrity_hash: "873c4807ec721fb48ea4d6fc9290e810"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:ODOMETERTRIP_COMPUTER"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/odometertrip-computer.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/odometertrip-computer"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-999999 km (6-digit display limitation)"
    unit: "km or miles"
engineering_limits:
  max_safe_operating_point:
    value: 5
    unit: "mT"
    consequence: "Hall effect sensor magnetic field distortion due to ferromagnetic particle accumulation or permanent magnet demagnetization at temperatures &gt; 150°C (Curie temperature of NdFeB magnets)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electrostatic discharge (ESD) &gt; 8 kV on CAN bus lines"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "TVS diodes with 5.5V clamping voltage on all CAN transceiver pins"
  - node_2:
      trigger: "Hall effect sensor air gap increase &gt; 2.5 mm due to bearing wear"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Redundant dual Hall sensors with 90° phase offset and voting logic"
bom_nodes:
  microprocessor:
    type: "part"
    urn: "URN:CNFX:ME:MICROPROCESSOR"
    interface_type: "physical-logic-coupled"
  display-screen:
    type: "part"
    urn: "URN:CNFX:ME:DISPLAY_SCREEN"
    interface_type: "physical-logic-coupled"
  control-buttons:
    type: "component"
    urn: "URN:CNFX:ME:CONTROL_BUTTONS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 8855:2011 (ROAD VEHICLES - VEHICLE DYNAMICS AND ROAD-HOLDING ABILITY - VOCABULARY)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/odometertrip-computer.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "b33d98489b31ab326fb3e238036ebc5c8831f09a544a9dc5ccdf62b12639d71f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Odometer/Trip Computer

## 1. Technical Definition
An electronic instrument that measures and displays vehicle distance traveled and trip-related data.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-999999 km (6-digit display limitation)**. Failure boundary: **Hall effect sensor magnetic field strength &lt; 5 mT or &gt; 100 mT**, Mechanism: **Hall effect sensor magnetic field distortion due to ferromagnetic particle accumulation or permanent magnet demagnetization at temperatures &gt; 150°C (Curie temperature of NdFeB magnets)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Electrostatic discharge (ESD) &gt; 8 kV on CAN bus lines | 8 | Microcontroller EEPROM corruption causing odometer reset to zero | TVS diodes with 5.5V clamping voltage on all CAN transceiver pins |
| Hall effect sensor air gap increase &gt; 2.5 mm due to bearing wear | 8 | Pulse signal loss at wheel speeds &gt; 30 km/h | Redundant dual Hall sensors with 90° phase offset and voting logic |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | km or miles | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Microprocessor](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/microprocessor.md) `(Standalone System)`
- [Display Screen](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/display-screen.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Automated Assembly Line**, **Calibration Test Bench**, **Electrostatic Discharge (ESD) Protection System**  
**Downstream Applications**: Dashboard Instrument Cluster, Vehicle Information Display System, Telematics Control Unit  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What data does this odometer/trip computer display?
**A**: It displays total vehicle distance traveled, trip-specific distance, and related trip data through an LCD screen, controlled by a microprocessor.

### Q: What materials are used in its construction?
**A**: It features a durable plastic housing, an electronic circuit board, an LCD display, control buttons, and a microprocessor for reliable operation in vehicles.

### Q: How is the trip computer operated?
**A**: Users interact via control buttons to reset trip data, toggle displays, and access functions, with the microprocessor processing inputs for accurate measurements.

## 6. Manufacturing Compliance
- ISO 8855:2011 (ROAD VEHICLES - VEHICLE DYNAMICS AND ROAD-HOLDING ABILITY - VOCABULARY)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Odometer/Trip Computer](https://cnfx.com/industry/motor-vehicle-manufacturing/product/odometertrip-computer)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: ODOMETERTRIP_COMPUTER | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e8df5c0c
