13results about How to "Meet driving needs" patented technology

This invention discloses a power amplifier power supply circuit for enhancing instantaneous driving capability under weak power conditions, applicable to power amplifiers with adjustable power rail voltage powered by a USB interface power supply or other low-power power supplies. It includes a signal processing unit and a boost power supply unit. The input terminal of the signal processing unit is connected to the audio signal input, and after processing the audio signal, it is connected to the input terminal of the power amplifier and the feedback terminal of the boost power supply unit. The input terminal of the boost power supply unit is connected to an external weak power supply, and the feedback terminal is connected to one of the outputs of the signal processing unit, with the output connected to the power supply terminal of the power amplifier. Each stage of the power supply circuit described in this invention employs a synchronous rectification boost circuit, reducing losses on the rectifier diodes and increasing the energy storage capacity of the energy storage devices. Through stage-by-stage energy storage and dynamic boosting, it can meet the driving requirements of audio signals with a wide envelope and containing instantaneous high-power signals, and is suitable for power amplifiers with different voltage supply requirements.

This utility model discloses a thermal management system and a vehicle. The thermal management system includes: a condenser on a first flow path, a heat exchanger on a first refrigerant branch, and the first flow path being connected to one of a second flow path, a first refrigerant branch, and a third refrigerant branch; an engine radiator and a heater core on a first circuit, and a heat exchange device on a second circuit; a first heat exchange channel connected in series on the second flow path, and a second heat exchange channel connected in series on the first circuit, with at least one of the first and second heat exchange channels exchanging heat with the engine's exhaust pipe; and a second heat exchange assembly, which includes a third heat exchange channel and a fourth heat exchange channel, the third heat exchange channel being connected in series on the refrigerant circuit, and the fourth heat exchange channel being connected in series on the second circuit. According to this utility model's thermal management system, while meeting the heating needs of the passenger compartment, it can reduce engine warm-up time during cold starts, reduce cold start fuel consumption, effectively save energy and reduce costs, and achieve integrated design.

The display driver and the display driver interface provided by the present disclosure comprise: the gate of the first switch tube and the gate of the third switch tube are connected with the first differential input end respectively, and the gate of the second switch tube and the gate of the fourth switch tube are connected with the second differential input end respectively. The source of the first switch tube is connected with the source of the second switch tube, the source of the third switch tube is connected with the source of the fourth switch tube, the drain of the first switch tube is connected with the drain of the third switch tube, and the drain of the second switch tube is connected with the drain of the fourth switch tube. The source of the fifth switch tube is connected with a voltage source, and the drain of the fifth switch tube is connected with the source of the first switch tube and the source of the second switch tube. The first resistor is connected in series with the first differential output end and the second differential output end. The input end of the feedback circuit is connected with the drain of the first switch tube, the third switch tube, the second switch tube and the fourth switch tube, and the output end of the feedback circuit is connected with the gate of the fifth switch tube. The common-mode voltage of the output signal can be flexibly adjusted.

The invention is applicable to the technical field of vehicle control, and provides an amphibious vehicle control method based on stability and economy collaborative optimization, which comprises the following steps: solving additional torque required for maintaining the stability of a vehicle attitude through real-time working condition identification and adaptive model prediction control, and calculating a stable power demand in combination with multi-target optimization distribution; superposing the stability power and the longitudinal propulsion power to obtain the total power demand of the system; on the basis of the total power demand, a hybrid power system energy management model is constructed, and global optimization distribution of engine and battery power is realized by using a neural network-based adaptive equivalent factor iteration updating strategy; and converting the optimized power instruction into torque and distributing the torque to a corresponding driving unit. By deeply coupling the full-scene stability constraint to the energy management closed loop, the problem that stability and economical efficiency optimization are disjointed is solved, and the energy economical efficiency of the whole vehicle is improved on the premise that all-working-condition driving safety and attitude stability of the amphibious vehicle are guaranteed.

The application discloses a vehicle communication fault processing system, method and equipment, and belongs to the technical field of vehicles.When the vehicle controller cannot receive the message sent by the battery management system, the fault level of the vehicle controller is determined according to the time length during which the message is not received, when the fault level is less than the first level, the target torque of the motor is determined, and the motor is controlled based on the target torque.Because the current discharge power of the battery is determined based on the maximum discharge power sent by the battery management system last time when the target torque is determined, the target torque determined based on the maximum discharge power last time is a safe torque, and the safety of the user can be ensured.Furthermore, under the premise of ensuring the safety of the user, the motor is controlled to continue running based on the target torque to drive the vehicle to run, and the driving demand of the user can be met. It can be seen that the system can ensure the safety of the user and meet the driving demand of the user.

The invention discloses a charge pump, relates to the technical field of charge pump driving, and aims to solve the problem that a charge pump in the prior art cannot generate working voltage required by a high-side power tube under low working voltage. The charge pump comprises a level processing module and a multi-stage charge pump module which are respectively connected with the oscillator. The level processing module is used for generating a target voltage and inputting the target voltage into the oscillator; the target voltage is greater than or equal to ground level and less than power voltage; the oscillator is used for generating a target clock signal by taking the target voltage as a ground level and taking the intermediate voltage as a high level, and inputting the target clock signal to the multi-stage charge pump module; the intermediate voltage is a secondary voltage generated after on-chip or off-chip voltage stabilization is carried out on the power supply voltage; the multi-stage charge pump is used for performing multi-stage amplification on the intermediate voltage based on a target clock signal and then outputting the intermediate voltage to the high-side power tube; the charge pump can still normally output the voltage required by the high-side power tube under a relatively low working voltage.

The invention relates to the field of hybrid power driving devices, and provides a hybrid power speed change device which is characterized in that a first planetary gear mechanism and a second planetary gear mechanism are combined into a two-stage planetary gear mechanism, a first sun gear is connected with a second sun gear, and a first planet carrier is connected with a second planet carrier; a first gear ring of the first planetary gear mechanism is a first inner gear ring of the two-stage planetary gear mechanism; a second gear ring of the second planetary gear mechanism is a second inner gear ring of the two-stage planetary gear mechanism; the internal combustion engine is connected with a planet carrier of the two-stage planetary gear mechanism through an input shaft. An output shaft of the first motor is connected with a sun gear of the two-stage planetary gear mechanism; an output shaft of the second motor is connected with a second inner gear ring of the two-stage planetary gear mechanism; a first inner gear ring of the two-stage planetary gear mechanism is connected with the main output shaft. According to the invention, the loss of energy in secondary conversion is reduced, so that the composite shunting working mode meets all use working conditions, and the power performance, economic performance and smooth performance of the whole vehicle are improved.

This utility model proposes an autonomous mobile robot (AMR) walking track and walking rack, which solves the problems of existing track-type racks requiring separate assembly of frames adapted to their wheels and complex rack assembly when dealing with AMR transportation operations. The main solution includes: a track plate, the center of which has a groove recessed downward along its track to form two symmetrical roller surfaces on both sides of the track plate. The two roller surfaces are set flat, and the groove passes through both ends of the track plate in the track direction. Its bottom surface is flat for attaching external barcodes. The side of the groove that connects to the two roller surfaces is an outwardly inclined slope. Each roller surface is continuously bent on the side opposite to the slope and has a hole at the end of the bend for bolt fixing to the external rack beam.

The utility model provides a car door sealing strip and a car and relates to the field of car parts, the car door sealing strip comprises a sealing strip body and a reinforcing structure, the sealing strip body is used for being installed on a car door frame, and the sealing strip body is provided with a sealing bubble which extends in the length direction of the sealing strip body and is used for being in contact with a car door. A cavity is formed in the sealing bubble, the reinforcing structure is located in the cavity, and the reinforcing structure and the sealing strip body are of an integrated structure. The reinforcing structure is arranged in the cavity of the sealing bubble and can be made of a material different from that of the sealing strip body, so that the sealing strip has high hardness, the compression amount of the sealing bubble and the interference amount of the sealing bubble and the reinforcing structure are controlled to effectively support a vehicle door, and the driving requirement of a vehicle on a flat road section is met; when a vehicle runs to a bumpy road section, the compression amount of the vehicle door to the sealing bubble is increased due to vibration, so that the interference amount of the sealing bubble and the reinforcing structure is increased, the sealing reaction force of the vehicle door sealing strip is sharply increased, and the vibration of the vehicle door is limited.

The application discloses a high beam follow-up method and system in a vehicle steering out-of-control state and a vehicle, and relates to the technical field of vehicle lighting. The method comprises the following steps: acquiring a first signal about the current steering wheel angle and the vehicle speed; obtaining an expected deflection angle of the high beam according to the first signal; acquiring a second signal about the yaw rate of the vehicle; obtaining a deflection angle compensation of the high beam according to the second signal; combining the expected deflection angle and the deflection angle compensation into an expected deflection angle output value, and generating a control signal for controlling the rotation of the high beam according to the expected deflection angle output value to adjust the illumination area. Compared with the prior art, the application can make the high beam of the vehicle match the driving direction in time when the vehicle steering is out of control, and reduce potential safety hazards.

The invention belongs to the technical field of unmanned vehicle environment perception and obstacle avoidance, and discloses an unmanned vehicle transparent obstacle visual touch fusion perception and obstacle avoidance method, and the method comprises the steps: carrying out the transparent object edge detection of an image collected by a vehicle-mounted around-view camera through an improved Transform semantic segmentation network, and outputting an initial position coordinate and a credibility score; a tactile verification and enhancement module is built, flexible multi-mode tactile sensors fusing triboelectric sensing and visual tactile sensing are deployed on the edges of a bumper and a hub of the unmanned vehicle, and close tactile features are generated in the non-contact stage; when the visual credibility is relatively high, the visual data is dominated, the tactile data assists correction, and when the visual credibility is relatively low, a tactile signal dominant mode is triggered; and generating and executing an obstacle avoidance path. According to the invention, the detection precision of the unmanned vehicle on transparent obstacles in extreme scenes such as urban roads, indoor venues, rainy days and nights is obviously improved, the collision risk is reduced, and the unmanned vehicle is adapted to complex moving working condition requirements.

The utility model relates to the technical field of automobile speed reducers, in particular to a rear main speed reducer assembly which comprises a rear main speed reducer (1). A torque manager (2) and an expansion structure are respectively arranged on the rear main speed reducer (1); the torque manager is installed on the rear main speed reducer, the driving performance of the vehicle can be optimized, the control stability, the traction capacity and the escape capacity are enhanced by dynamically adjusting the torque transmitted to the rear wheels, meanwhile, better vehicle control is provided during emergency avoidance or rapid steering, and driving safety is ensured. In addition, fuel economy or battery endurance of the electric vehicle can be improved, driving experience is improved, and the electric vehicle can adapt to different driving modes so as to meet diversified driving requirements. The expansion structure provides different schemes for a rear suspension structure of the rear main speed reducer. Therefore, the universality of the device is effectively improved.

The invention relates to an electromagnetic positioning system, and belongs to the technical field of electromagnetic positioning. In order to solve the problems that an existing magnetic field generator is large in size, poor in magnetic field uniformity, high in driving noise and the like, a planar structure comprising eight PCB embedded coil units is provided, four corner coils are orthogonally arranged, four center coils are in 45-degree rotational symmetry, and the center of the corner four-coil layout coincides with the center of the center four-coil layout; the coil is integrated in a double-layer PCB structure, high consistency and magnetic field intensity enhancement are achieved, a multichannel synchronous driving source is matched, a power driving circuit and a phase reference circuit output in-phase signals, the power driving circuit amplifies power signals to a sufficient power level, and the phase reference circuit provides accurate driving source signals for a positioning algorithm. The scheme is suitable for a five-degree-of-freedom electromagnetic positioning system, a uniform, controllable and low-noise magnetic field can be generated in a limited space, and the positioning precision and the real-time performance are improved.