5 results about "Speed control system" patented technology

The invention discloses a dual-motor differential speed control system and method for a surface aircraft. The differential speed control system comprises a controller, two membrane pressure sensors, two signal conversion circuits, two electronic speed regulators, and two motors. The two membrane pressure sensors are installed below two button springs respectively and are used for collecting pressure values of the button springs; the output terminals of the two membrane pressure sensors are connected with the input terminals of the two signal conversion circuits. The output terminals of the twosignal conversion circuits are respectively connected with two AD input pins of the controller. The signal conversion circuits are used for converting the output signals of the membrane pressure sensors into voltage signals. The two control signal output ports of the controller are respectively connected with the input terminals of the two electronic speed regulators; and the output terminals ofthe two electronic speed regulators are connected with the two motors. With the dual-motor differential speed control system and method, the turning directions and speeds of the surface aircraft can be controlled simultaneously.

The invention provides a wireless-sensor-based intelligent electric bicycle helmet management system, and relates to the technical field of safe driving of electric bicycles. The wireless-sensor-basedintelligent electric bicycle helmet management system comprises a helmet monitoring system, an electric bicycle speed control system and a ZiBee module. The helmet monitoring system is in data connection with the electric bicycle speed control system by the ZiBee module; and the helmet monitoring system and the electric bicycle speed control system are used for detecting whether the helmet is worn on a head or not. After adopting the technical scheme, the wireless-sensor-based intelligent electric bicycle helmet management system has the beneficial effects that combined with the two technicaladvantages of existing ZiBee communication and sensor which are every mature, effective protection for an electric bicycle driver is achieved, otherwise driving is carried out according to a certainprescribed value, and the driver is reminded at the same time to wear a helmet to achieve effective protection for the electric bicycle driver.

The invention discloses an integrated clean air conditioner and dust-free air conditioner, the structure of which comprises an air conditioner main body, a filter box door, a controller, a refrigeration compressor box door, a fresh air outlet, a frequency conversion controller, a return air outlet, and a humidification and dehumidification humidity control pipeline , the filter box door is movably connected to the left end surface of the main body of the air conditioner through a hinge, the controller is electrically connected to the left end surface of the filter box door, and the refrigeration compressor box door is movably connected to the front surface of the air conditioner main body through a hinge. The right side of the compressor box door is provided with a fresh air outlet, which is embedded in the front surface of the main body of the air conditioner. This invention can control and adjust the control system of the speed of the compressor during the cooling operation of the air conditioner, so that it is always in the best position. When the indoor temperature reaches the desired value, the air conditioner will run at a constant speed that can accurately maintain this temperature, effectively improving the energy efficiency ratio and practical performance of the equipment.

The invention discloses a coaxial multi-layer multi-stage type self-adaptive two-gear speed control system. The coaxial multi-layer multi-stage type self-adaptive two-gear speed control system is characterized in that a fixed shaft is sequentially and rotationally sleeved with an input sleeve, a high-speed transmission sleeve, a low-speed transmission sleeve and an output sleeve from inside to outside, wherein the input sleeve is in direct power connection with the high-speed transmission sleeve or in power connection with the high-speed transmission sleeve through a first speed reducing mechanism, the high-speed transmission sleeve and the low-speed transmission sleeve are in power connection through a second speed reducing mechanism and a clutch mechanism, when the clutch mechanism is disengaged, the output sleeve is in power connection with the low-speed transmission sleeve, when the clutch mechanism is engaged, the output sleeve is in power connection with the high-speed transmission sleeve, the output sleeve is sleeved with an output component, and a motor for driving the input sleeve to rotate is arranged at one end of the fixed shaft. The coaxial multi-layer multi-stage typeself-adaptive two-gear speed control system has beneficial effects that automatic gear shifting can be achieved according to loads, and the technical problems that a traditional speed control systemis too large in structure and poor in overall stress balance are solved.