9results about How to "Improve vehicle performance" patented technology

A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.

A hybrid powertrain (1000) and a vehicle (4000). The hybrid powertrain (1000) includes: a conversion device (10), a first motor (200), and an engine (300). At least one of the first motor (200) and the engine (300) is configured to selectively output power to a driving end through the conversion device (10). The engine (300) is configured to selectively output power to the first motor (200) through the conversion device (10), to drive the first motor (200) to generate electricity.

The embodiment of the invention relates to the technical field of vehicle control, and discloses a chassis control method and device and electronic equipment, and the method comprises the steps: firstly, inputting vehicle driving data into a control model, and obtaining an initial chassis control decision output by the control model, the vehicle driving data comprising environment data and chassis state data of a vehicle; then, inputting the vehicle driving data and the initial chassis control decision into a large language model, and obtaining a target chassis control decision output by the large language model; and finally, the chassis of the vehicle is controlled according to the target chassis control decision. By means of the technical scheme, the accuracy of chassis control decision can be improved, precise control over a vehicle chassis system is achieved, and higher safety and stability can be provided in a complex and changeable driving environment.

The present application provides a vehicle dehumidifying device and a vehicle air conditioning system, wherein the vehicle dehumidifying device can be used as a humidity adjusting unit arranged in the vehicle air conditioning system and has good reliability. The vehicle air conditioning system comprises an air conditioning unit including an air inlet end and a blower, and a vehicle dehumidifying device as a humidity adjusting unit. The vehicle dehumidifying device has a dehumidifying element and is arranged on the upstream side of the blower, and an air inlet of the vehicle dehumidifying device is arranged on one side of an instrument panel separating a driving chamber and a vehicle cabin, so that only indoor air can pass through the dehumidifying element after being introduced into the air inlet of the vehicle dehumidifying device through the blower.

The embodiment of the invention discloses a current sensor detection method and device based on a multi-branch battery pack, belongs to the technical field of electric vehicles, and solves the problem that the whole vehicle performance of the electric vehicle is reduced due to inaccurate current collection of the multi-branch battery pack. Comprising the steps of obtaining battery management data corresponding to a previous driving cycle, and determining a sensor diagnosis mode parameter based on the battery management data; starting a sensor diagnosis mode under the condition that the sensor diagnosis mode parameter meets a preset current sensor diagnosis mode starting condition; controlling the on and off of a plurality of diagnosis relays, a battery pack relay and a main negative relay, so that the total discharge current of the multi-branch battery pack sequentially passes through a plurality of current sensors; and comparing the multi-branch current detection data obtained by the plurality of current sensors with a preset current sensor fault parameter threshold, and determining the fault conditions of the plurality of current sensors and the total current value of the battery pack based on the comparison result.

The invention discloses a robot welding path optimization method for electric tricycle manufacturing, and relates to the technical field related to data processing, a welding path parameter space of a battery compartment structure in electric tricycle manufacturing is obtained, and a plurality of first welding path parameters are randomly generated in the welding path parameter space; and according to the multiple first welding path parameters, welding simulation prediction of the battery compartment structure is conducted, and multiple first deformation parameters and multiple first welding seam protrusion parameters are obtained. And battery looseness analysis and battery damage analysis are carried out after the welding operation of the battery compartment. And on the basis of the analysis result, the multiple first welding path parameters are subjected to bidirectional adjustment and screening to obtain multiple second welding path parameters, parameter optimization continues to be conducted, and the optimal welding path parameters are obtained to serve as the robot welding path optimization result. The technical problem that in the prior art, a systematic and accurate optimization means is lacked in the welding process of the battery compartment of the electric tricycle, and consequently the fault of the battery compartment is difficult to reduce is solved.

The invention provides a frame rear tailstock, a frame and a vehicle, the frame rear tailstock is installed and fixed at the tail end of the frame, the frame rear tailstock comprises a first tailstock, a second tailstock, a mounting seat and a tie rod, the first tailstock and the second tailstock are distributed at an interval and are welded to the mounting seat, the mounting seat is provided with a cavity, the mounting seat is welded to the frame, and the tie rod is arranged in the cavity. The transverse pull rod is welded to the mounting base, and the two ends of the transverse pull rod are welded to the first tailstock and the second tailstock correspondingly. According to the frame rear tail seat, the frame and the vehicle, the first tail seat, the second tail seat, the mounting seat and the transverse pull rod are connected into a whole through welding, and the overall finished product quality of the rear tail seat is improved; the cavity is designed on the mounting seat, so that the strength and the rigidity of the structure can be improved under the condition that the weight is not obviously increased, deformation caused by external force can be effectively resisted, and the shape and the function of the rear tailstock can be kept in the long-time use process; the manufacturability of the rear tailstock and the frame is improved, and the manufacturing cost of the frame is reduced.

The present invention discloses an energy-saving vehicle frame with adjustable front wheel parameters, which relates to the technical field of vehicle manufacturing, and comprises a frame body, wherein both sides of the top of the frame body are fixedly connected with slide rails, a pair of the slide rails are slidably connected with bases, a pair of the bases are swingably connected with ball pins, the tops of a pair of the ball pins are fixedly connected with bottom plates, a pair of the tops of the bottom plates are fixedly connected with columns, and a pair of the columns are slidably connected with wheel mounting frames. The present invention has a reasonable structure, and can be adjusted by setting a wheelbase adjustment component, a toe adjustment component, a camber angle adjustment component, a horizontal adjustment component, a caster angle adjustment component, and a wheel ground clearance adjustment component, thereby realizing front wheel track adjustment, front wheel toe adjustment, kingpin camber angle adjustment, kingpin caster angle adjustment, and wheel ground clearance adjustment, without manual adjustment, saving time and effort, and real-time adjustment, thereby improving the vehicle performance during the driving process of the energy-saving vehicle.

The invention discloses a gear-shifting and energy-saving control method, device and system for a plug-in hybrid electric vehicle. The method comprises the following steps: acquiring vehicle driving data; c-means clustering analysis is carried out on the vehicle driving data; according to the vehicle driving data after clustering analysis, a BP neural network is constructed, and the BP neural network is utilized to carry out on-line optimization on a gear shifting sequence; determining a reference curve of the SOC, and comparing the reference curve with the current SOC to iteratively update the equivalent factor; and gear shifting and power distribution are optimized through real-time updating of the equivalent fuel oil minimum strategy. By the adoption of the technical scheme, the plug-in hybrid electric vehicle adapts to different working conditions, gear shifting and power distribution are optimized, the problem of mixed integers in a control algorithm is avoided, and better fuel economy is shown under hybrid drive.