2results about How to "Realize two-way control" patented technology

The application discloses a kind of electric vehicle inching energy recovery control methods for shopping mall parking building congestion scene, comprising the following steps: obtaining vehicle state information and environmental information, judge whether to enter shopping mall parking building congestion inching scene and activate mode;Set up inching safety follow car speed range, calculate dynamic energy recovery level according to speed deviation, steering wheel angle and road slope;When speed is higher than the upper limit of range, control motor output negative torque to regenerate brake and limit torque change rate, when speed is lower than the lower limit of range, output positive torque to inch drive;After driving off scene, automatically exit.The application is aimed at the characteristics of shopping mall parking building low speed, high frequency start-stop, many bends and many ramps, realizes bidirectional control and energy recovery under inching condition, significantly improves energy utilization efficiency.

The invention discloses an automatic totally-closed low-flow-resistance two-way valve which is characterized by being composed of a valve body, an inlet connecting pipe, an outlet connecting pipe, a valve plate, a transition conversion seat, a valve plate driving mechanism, an upper end cover, a lower end cover and a connecting piece. A transition conversion seat is arranged at the position, corresponding to the outlet connecting pipe, in the valve body, a valve plate is arranged on the left side of the transition conversion seat, and a valve plate driving mechanism is arranged on at least one of the upper portion or the lower portion of the valve plate. An upper end cover and a lower end cover are respectively arranged above and below the valve body; at least one of the upper end cover and the lower end cover or the upper end and the lower end of the valve body is provided with a connecting piece; by additionally arranging the transition conversion seat, the transition conversion seat is perfectly matched with the plane of the valve plate, so that the sealing performance is greatly improved, the cost is reduced, the valve plate can deviate and automatically compensate after being abraded, leakage is completely eradicated, and low-flow-resistance fluid two-way control is effectively achieved.