ADD file via upload

ElectronicControlUnit.java

@@ -0,0 +1,71 @@
+package com.car.model;
+
+/**
+ * 电子控制单元类 - 汽车电子系统的组件
+ * 与ElectronicSystem类是组合关系
+ */
+public class ElectronicControlUnit {
+    private String name; // ECU名称
+    private String function; // 功能描述
+    private boolean isOperational; // 是否正常工作
+    
+    /**
+     * 构造方法
+     * @param name ECU名称
+     * @param function 功能描述
+     */
+    public ElectronicControlUnit(String name, String function) {
+        this.name = name;
+        this.function = function;
+        this.isOperational = true;
+    }
+    
+    /**
+     * 诊断ECU状态
+     * @return 诊断结果
+     */
+    public boolean diagnose() {
+        // 模拟诊断过程
+        return isOperational;
+    }
+    
+    /**
+     * 重置ECU
+     */
+    public void reset() {
+        if (!isOperational) {
+            isOperational = true;
+            System.out.println(name + " ECU has been reset.");
+        }
+    }
+    
+    // getter and setter methods
+    public String getName() {
+        return name;
+    }
+    
+    public void setName(String name) {
+        this.name = name;
+    }
+    
+    public String getFunction() {
+        return function;
+    }
+    
+    public void setFunction(String function) {
+        this.function = function;
+    }
+    
+    public boolean isOperational() {
+        return isOperational;
+    }
+    
+    public void setOperational(boolean isOperational) {
+        this.isOperational = isOperational;
+    }
+    
+    @Override
+    public String toString() {
+        return "ElectronicControlUnit [name=" + name + ", function=" + function + ", isOperational=" + isOperational + "]";
+    }
+}