1, electrical appliances can't work: the sunroof, door lock, lighting, wiper, voltage regulator, multimedia system and other electrical appliances on the car can't work normally. ?
2. The P gear is locked: If the P gear is locked, the shift of the vehicle will be greatly affected. ?
3. Component failure: There may be problems such as abnormal horn operation, abnormal wiper operation, startup failure, automatic locking failure of driving, central locking failure, etc.
What do you mean bcu failed?
Main board failure in battery management system.
BCU is a special computing platform for Baidu's autonomous driving. It has two basic capabilities of information security and cloud update, and three AI core modules, and has high-precision positioning, environmental awareness and planning and decision-making capabilities.
Based on the accumulation of functions, three series of products are defined: MLOC (high precision positioning), MLOP (high precision positioning+environmental awareness) and MLOP2 (high precision positioning+environmental awareness+planning decision).
Automobile BCU fault refers to battery control unit fault, and BMU fault refers to battery management unit fault. These two control modules are complementary. Generally, when the BCU fault code prompt appears in the driving computer, it may be caused by clutch or brake slipping or sensor circuit failure. Before positioning maintenance, you need to go to a professional 4S repair shop for a comprehensive inspection and contact 4S for after-sales treatment.
BCU: BMS is a slave controller, which collects and reports the voltage and temperature information of power battery cells in real time, and feeds back the SOH and SOC of each battery. At the same time, it has the function of active/passive balance circuit, which effectively ensures the consistency of the battery in the process of power consumption.
BMU: BMS master controller, which processes the information reported by the controller and the high-voltage controller, judges and controls the running state of the power battery according to the reported information, controls the charging and discharging, realizes the control strategy related to BMS, and makes corresponding fault diagnosis and treatment.
IVU: The collection of battery current and total voltage, also known as high-voltage controller, collects and reports the total voltage and current information of power battery in real time, and realizes timely integration through its hardware circuit, providing accurate data for the motherboard to calculate the state of charge (SOC) and the state of health (SOH), and at the same time realizing the functions of precharge detection and insulation detection.