4results about How to "Safe and effective control" patented technology

The invention provides a motor control method, device and system and a vehicle, and the motor control method comprises the steps: outputting a safety protection request signal and a mode switching control signal to a motor driving system when an IGBT module in the motor driving system of the vehicle breaks down; a first driving unit in the motor driving system is controlled through the safety protection request signal and the mode switching control signal to output a target driving signal to an IGBT module, so that the IGBT module controls a motor to enter an inverter turn-off mode based on the target driving signal, and the first driving unit is used for performing driving control on the motor in a function safety mode. Therefore, when the IGBT module has a fault, the motor can be safely and effectively controlled to enter the inverter turn-off mode, so that damage or failure of the motor caused by the fact that the motor cannot reach heat balance in an active short-circuit mode can be effectively avoided.

The utility model provides a vertical spiral feeding jet device, including tank, spiral feeding mechanism, jet machine system and controller, spiral feeding mechanism is vertically connected in tank, jet machine system includes receiving chamber, pipeline mixer, intake subassembly and gas material delivery pipeline, the discharge port of tank bottom is communicated with the inlet of receiving chamber, and the discharge port of tank bottom is communicated with the inlet of receiving chamber. An outlet of the receiving chamber is communicated to the pipeline mixer, the gas inlet assembly comprises a high-pressure gas supply pipe and a tank body pressurizing pipe, and the gas outlet end of the high-pressure gas supply pipe is communicated to the receiving chamber; after being mixed and compressed by the pipeline mixer, the mixture is pneumatically conveyed into the main feeding channel of the stirring drilling tool through the gas conveying pipeline, and the tank body pressurizing pipe is used for pressurizing in the tank. The vertical spiral feeding jetting device serves as a construction feeding background, accurate and stable feeding is achieved through the intelligent controller, and the foundation treatment construction quality is guaranteed.

Embodiments of the present application disclose a vehicle control method and device, electronic equipment and storage medium. The vehicle control method can specifically include obtaining a first control instruction and a second control instruction, and performing a first vehicle state check on a to-be-controlled vehicle; performing a second vehicle state check on the to-be-controlled vehicle according to a first vehicle state check result; performing a third vehicle state check on the to-be-controlled vehicle according to a second vehicle state check result and third vehicle state information; performing a fourth vehicle state check on the to-be-controlled vehicle according to a third vehicle state check result and a fifth control instruction; and obtaining a sixth control instruction according to a fourth vehicle state check result, so as to control the to-be-controlled vehicle according to the sixth control instruction. The technical solution of the embodiments of the present application can effectively and safely control the to-be-controlled vehicle when the vehicle needs to leave the parking position in time and the driver cannot reach the parking site, so as to make the to-be-controlled vehicle safely leave the parking position.

The invention discloses an intelligent control relay driving power supply circuit and a power battery. The driving power supply circuit comprises a main negative relay adhesion detection circuit and a relay power supply circuit, wherein the main negative relay adhesion detection circuit comprises a main negative relay, an RC low-pass filter, an NMOS tube, an anti-reverse diode and an optocoupler switch; the relay power supply circuit comprises a D trigger chip, an AND gate integrated chip, a triode and a PMOS tube. The relay driving power supply circuit provided by the invention can realize adhesion self-inspection of the main negative relay, and realizes control of the relay driving power supply loop through a hardware circuit and software self-inspection according to a self-inspection result; when a relay fault or a negative electrode adhesion detection circuit fault occurs, a relay power supply loop can be effectively cut off, and relay closing caused by software errors is avoided logically from the circuit, so that a power battery high-voltage system is safely and effectively controlled, and dangerous working conditions such as short circuit, thermal runaway and large current impact of a high-voltage main loop are avoided.