3results about How to "Avoid failure to start" patented technology

The application discloses a pre-charging system and a control method thereof, which comprises a single-chip microcomputer, which is used for collecting the voltage of a pre-charging circuit and performing calculation, filtering and duty cycle adjustment of a PWM pulse control signal; the pre-charging circuit comprises a triode Q1, the base of the triode Q1 is connected with the single-chip microcomputer and receives the PWM pulse control signal; one end of a capacitor C1 connected with the collector of the triode Q1, the other end of the capacitor C1 is connected with an NMOS tube Q2 control loop, the PWM pulse control signal is coupled to the NMOS tube Q2 control loop through the capacitor C1, and the on-off of the NMOS tube Q2 in the NMOS tube Q2 control loop is controlled; the drain of the NMOS tube Q2 is connected with the positive pole of a battery group through a pre-charging resistor R10, and the source level is connected with a pre-charging capacitor group, and the time for charging the pre-charging capacitor group is controlled through the on-off of the NMOS tube Q2.

The invention provides a negative electrode control circuit and method for a commercial vehicle loading system, the negative electrode control circuit is provided with a battery positive electrode interface, a battery negative electrode interface and an output interface, the battery positive electrode interface is connected with the positive electrode of a storage battery, the battery negative electrode interface is connected with the negative electrode of the storage battery, and the output interface is connected with the negative electrode of electric equipment; the negative electrode control circuit comprises a field effect transistor which is provided with a grid electrode, a drain electrode and a source electrode, the grid electrode is connected with the battery positive electrode interface, the drain electrode is connected with the output interface, and the source electrode is connected with the battery negative electrode interface; and the controller detects the voltage of the storage battery in real time, controls the switch-on and switch-off of the field effect transistor according to the voltage of the storage battery, and further controls the connection state of the output interface and the battery cathode interface. The technical problems that a lead-acid storage battery manager can only achieve the voltage and electric quantity detection function, a load switch cannot be directly controlled, and overdischarge cannot be fundamentally solved are solved.

The application provides an engine self-starting method and device, electronic equipment and vehicle. The method comprises the following steps: obtaining an engine water temperature and a vehicle ambient temperature; in response to determining that the engine water temperature is greater than a preset starting water temperature, determining a self-starting time based on the engine water temperature and the vehicle ambient temperature; returning to the operation of obtaining the engine water temperature and the vehicle ambient temperature at the self-starting time; and controlling the engine to start when the engine water temperature is less than or equal to the preset starting water temperature. The application avoids the problem that the engine cannot start due to the low engine water temperature, and avoids the problem of large power consumption caused by frequent engine starting, thereby improving the applicability and economy of the engine in a low-temperature environment.