Electric Steering Systems Course

Lesson 1 • Electric Steering System Architecture

Maps the complete system layout including motor, sensors, and control unit. Connects component roles to overall steering function.

Lesson 2 • History and Evolution of Steering

Traces steering technology from manual to hydraulic to electric assist. Provides context for why electric systems became the industry standard.

Lesson 3 • Core Components and Their Functions

Identifies each hardware element and its specific role in generating steering assist. Builds vocabulary needed for all subsequent chapters.

Lesson 1 • DC Circuit Principles for Steering

Covers voltage, current, resistance, and power as applied to steering motor circuits. Grounds students in the electrical theory used throughout the course.

Lesson 2 • Electrical Safety Practices

Establishes safe work habits when handling steering system electrical circuits. Prevents damage to components and injury during testing procedures.

Lesson 3 • Communication Protocols in Steering

Introduces CAN bus and LIN bus as the primary networks linking steering to vehicle systems. Students trace message paths between modules.

Lesson 4 • Sensors and Signal Types

Explains analog, digital, and PWM signals produced by steering sensors. Connects signal characteristics to how the control unit interprets driver input.

Lesson 1 • Sensor Calibration Procedures

Details factory and service calibration steps for torque and angle sensors. Ensures accurate assist delivery after component replacement or alignment service.

Lesson 2 • Steering Angle Sensor Operation

Covers optical, magnetic, and multi-turn angle sensing technologies. Connects angle data to vehicle stability and lane-keeping systems.

Lesson 3 • Torque Sensor Operating Principles

Explains torsion bar deflection and how it is converted to an electrical signal. Links sensor output directly to assist motor command generation.

Lesson 1 • Motor Types Used in Steering

Compares brushed DC, brushless DC, and permanent magnet synchronous motors for steering applications. Establishes selection criteria based on assist requirements.

Lesson 2 • Motor Drive Electronics

Explains H-bridge and three-phase inverter circuits that control motor current and direction. Connects drive topology to assist torque output.

Lesson 3 • Field-Oriented Control Fundamentals

Introduces vector control techniques used to maximize motor torque efficiency. Provides the theoretical basis for understanding ECU motor commands.

Lesson 4 • Motor Performance Testing

Covers bench and in-vehicle tests to verify motor output, current draw, and thermal behavior. Distinguishes motor faults from drive circuit and ECU faults.

Lesson 1 • ECU Replacement and Configuration

Details the steps to replace and configure a new ECU including variant coding and sensor calibration. Ensures full system functionality after ECU swap.

Lesson 2 • Assist Map and Control Strategy

Explains how vehicle speed, torque input, and driver mode selections shape the assist curve. Links calibration maps to real-world steering feel.

Lesson 3 • ECU Software and Calibration Updates

Explains flash programming procedures and the role of calibration files in steering performance. Prepares students to perform safe ECU reprogramming.

Lesson 4 • ECU Fault Management

Covers how the ECU detects, stores, and responds to internal and external faults. Students interpret freeze-frame data and fault priority levels.

Lesson 1 • Live Data Analysis Techniques

Uses real-time sensor and actuator data to confirm system operation under load. Connects live data patterns to specific component conditions.

Lesson 2 • Oscilloscope Testing of Steering Circuits

Applies oscilloscope techniques to capture sensor waveforms and motor drive signals. Reveals signal integrity issues invisible to multimeter testing.

Lesson 3 • Structured Diagnostic Workflow

Introduces a repeatable six-step diagnostic process from symptom verification to repair confirmation. Reduces diagnostic time and prevents unnecessary part replacement.

Lesson 4 • Reading and Interpreting Fault Codes

Teaches structured fault code analysis including code type, status, and related symptoms. Prevents misdiagnosis by distinguishing root causes from secondary codes.

Lesson 1 • Pre-Service Inspection and Planning

Establishes a systematic pre-repair inspection routine to confirm fault diagnosis before disassembly. Reduces rework by verifying root cause and gathering required resources.

Lesson 2 • Quality Control and Road Testing

Defines acceptance criteria for steering feel, effort, and return-to-center after repair. Students conduct structured road tests and document results.

Lesson 3 • Wheel Alignment After Steering Service

Explains how steering component replacement affects alignment angles and vehicle tracking. Students perform a four-wheel alignment to restore factory specifications.

Lesson 4 • Post-Repair Calibration Requirements

Identifies which repairs trigger mandatory sensor and system calibrations. Ensures steering assist accuracy and ADAS compatibility after service.

Lesson 1 • Autonomous Steering System Testing

Applies structured test protocols to verify autonomous steering functions meet performance targets. Students use simulation and on-vehicle testing to validate system behavior.

Lesson 2 • Cybersecurity in Steering Control

Identifies attack surfaces in networked steering systems and the protective measures used. Prepares students to recognize and report security-relevant anomalies.

Lesson 3 • Lane-Keeping and Lane-Centering Systems

Explains how camera and radar data generate steering correction commands through the EPS ECU. Connects ADAS sensor calibration to steering system accuracy.

Lesson 4 • Automated Parking and Low-Speed Maneuvering

Covers how parking assist systems command full steering authority at low speeds. Students verify system limits and sensor dependencies for safe operation.