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发明授权
US5561332A Vehicle anti-theft device having back-up means should the ECU fail, but preventing theft if the ECU was intentionally damaged 失效
车辆防盗装置具有备用装置，如果ECU故障，但如果ECU被故意损坏，则防止被盗

Vehicle anti-theft device having back-up means should the ECU fail, but preventing theft if the ECU was intentionally damaged
摘要：
This invention relates to an anti-theft device for an engine-driven vehicle having a control unit for controlling either of the supply of fuel to an engine and the ignition timing of this fuel, and a back-up mechanism acting for the control unit when the control unit is damaged. It is determined whether or not the control unit has functioned appropriately when the engine is started up, and if it is determined that it has not, the function of the back-up mechanism is prohibited. Hence, the engine will not start and theft of the vehicle is prevented even if, for example, the control unit is deliberately damaged and an attempt is made to start the engine. However, the back-up mechanism does function if the control unit develops a fault while the vehicle is running, and the vehicle therefore continues to run.
摘要（中）：

本发明涉及一种用于发动机驱动车辆的防盗装置，其具有控制单元，该控制单元用于控制对发动机的燃料供应和该燃料的点火正时，以及作用于控制单元的备用机构， 控制单元损坏。 当发动机启动时，确定控制单元是否适当地起作用，如果确定没有，则禁止备用机构的功能。 因此，即使例如控制单元故意损坏并试图启动发动机，发动机也不会起动和防止车辆的盗窃。 然而，如果控制单元在车辆行驶时发生故障，则备用机构起作用，并且车辆因此继续运行。

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