38results about How to "Reduce vehicle quality" patented technology

A suspension apparatus 1 includes an electric shock absorber 30 having a motor 40 and a ball screw mechanism 35, an electric circuit 101, an inverting amplification circuit 120, and an inertia compensation capacitor Cp. The electric circuit 101 electrically connects the two electricity supply terminals of the motor 40. The inverting amplification circuit 120 is connected to the electric circuit 101. The inertia compensation capacitor Cp is connected to the output terminal O of the inverting amplification circuit 120. As a result of approaching or separating motion between sprung and unsprung members, not only a generated current but also an inertia corresponding current I_m which represents an inertial force of a rotation body, such as the ball screw shaft 36 and the rotor of the motor 40, flows through the motor 40 and the electric circuit 101. A current I_p which is antiphase to the inertia corresponding current I_m flows through the inertia compensation capacitor Cp. This antiphase current I_p cancels out the inertia corresponding current I_m.

The invention relates to a lithium battery system capable of replacing a lead-acid electric vehicle battery system and a manufacturing method thereof. The lithium battery system comprises a battery pack shell, a battery module, a support, a battery management system (BMS) and electric parts, wherein the battery pack shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are connected in a closable manner; the battery module is assembled and formed by connecting lithium batteries in a series-parallel manner, and is fixed to the lower battery pack shell through the support; the BMS is mounted on the support; and the electric parts are mounted at corresponding design positions of the battery pack shell. The manufacturing method comprises the following steps: (1) processing the battery pack shell and the internal support; (2) connecting the lithium batteries in the series-parallel manner to assemble and form the module by using connecting cables and connecting copper bars; (3) putting the module into the lower battery pack shell, and mounting the support to fix the module; (4) mounting the related electric parts at the design positions of the battery shell; (5) mounting the BMS on the support; and (6) closing the upper battery pack shell. Through the replacement scheme, the usage of lead-acid batteries can be reduced, and the risks of environmental pollution are reduced; the lithium batteries are used for replacing the lead-acid batteries, and a low-temperature charging heating system is added, so that the low-temperature discharge capacity and the low-temperature charge performance of the battery system are improved.

A shock absorber includes expanding-side and contracting-side chambers formed in a cylinder, a housing that forms a pressurizing chamber, a free piston that partitions the pressurizing chamber into an expansive pressurizing chamber communicating with the expanding-side chamber and a contractive pressurizing chamber communicating with the contracting-side chamber, and expanding-side and contracting-side springs that exert biasing forces for suppressing the free piston from being displaced from a neutral position. The contracting-side spring has a non-linear characteristic by which the spring constant increases as it is compressed.

The invention discloses an electromagnetic integrated type energy feedback suspension actuator of an electric vehicle and a control method of the electromagnetic integrated type energy feedback suspension actuator of the electric vehicle. The suspension actuator comprises a magnetorheological damper, a linear motor and an actuator monitoring device, wherein the magnetorheological damper comprisesa cylinder, a magnetorheological fluid, an inner chamber upper partition board and an inner chamber lower partition board, wherein the linear motor comprises a linear motor shell, a secondary part anda primary part; the actuator monitoring device comprises an actuator controller. The control method of the suspension actuator comprises the following steps: 1, data acquisition and transmission; 2,control of the suspension actuator by the actuator controller in an energy feedback mode, a primary damping mode, a secondary damping mode and an active mode according to sample data. The suspension actuator is reasonable in design, multi-mode switching of a suspension system can be realized according to different road conditions of vehicle traveling, energy waste of the electric vehicle is reduced, driving mileage of the electric vehicle can be increased, and the promotion and application values are high.

The invention provides a vehicle electronic control system and a control method thereof and relates to the technical field of vehicle control. The vehicle electronic control system comprises at leastone control module and at least one executor; and each control module is in wireless communication connection with the corresponding executor and used for wirelessly controlling the corresponding executor. Compared with the prior art, due to the adoption of the wireless communication mode between each control module and the corresponding executor, the number of control lines and the number of hardware interfaces are reduced, so that the cost and the mass of a whole vehicle are reduced, meanwhile, the matching complexity of the hardware interfaces is reduced to a great degree, and a control framework is greatly simplified.

The invention relates to an automobile four temperature zone air conditioner control device and an automobile four temperature zone air conditioner control system. The automobile four temperature zoneair conditioner control device mainly comprises a shell, temperature control parts and an air supply control part; a main driving area air duct, an auxiliary driving area air duct, a main driving side rear air exhaust duct and an auxiliary driving side rear air exhaust duct, which are all provided with a cold air duct and a hot air duct, are separated in the shell, an air mixing area below the cold air ducts and the hot air ducts and an air outlet communicated with the air mixing area are also separated in the shell, four temperature control parts are respectively provided arranged corresponding to the main driving zone air duct, the auxiliary driving zone air duct, the main driving side rear air exhaust duct and the auxiliary driving side rear air exhaust duct. The air supply control part comprises air supply doors and air supply control mechanisms, wherein the air supply doors are rotatably arranged in the air ducts, and the air supply control mechanisms are used for controlling theopening and closing of the air supply doors. The device can achieve the independent control of the temperatures in the air ducts of the four zones, thereby improving the comfort of the main driver, the auxiliary driver and the rear passengers.

The invention discloses an antenna component, a vehicle-borne radar and an automobile. The antenna component comprises a medium substrate, a coplanar waveguide component, an array antenna and a back ground connection plate formed on the other side of the medium substrate, wherein the coplanar waveguide component is formed on one side of the medium substrate; the array antenna is formed on one sideof the medium substrate, is connected with the coplanar waveguide component and comprises at least one micro-strip feeder line and a plurality of array patches arranged on the top of the micro-stripfeeder line, wherein the plurality of array patches are divided into two groups, and the two groups of array patches have different widths; and the back ground connection plate is formed on the otherside of the medium substrate and is covered just below the coplanar waveguide component and the array antenna. The coplanar waveguide component and the array antenna of the antenna component are arranged on the same side of the medium substrate so as to be easy in connecting with the tiny pins of an MMIC (Monolithic Microwave Integrated Circuit) and to be easy in being arranged on the same side ofthe medium substrate with the MMIC, so that the antenna component is favorable for reducing the use area of the medium substrate and lowering the integral price of the vehicle-borne radar, in addition, a metal structural member which contains a waveguide cavity does not need to be used, and the integral quality of the radar can be lowered.

The invention discloses an outer cylinder assembly structure and welding joint for a dual-cylinder shock absorber; the outer cylinder assembly structure is composed of an outer cylinder part and a bottom cover part welded together, the wall thickness of the outer cylinder part is no more than 1.5 mm, the bottom cover part is provided with an outer cylindrical surface matched with the outer cylinder part, and the length of the outer cylindrical surface is no more than 5 mm. a welding joint employing melting and no pressure-welding is adopted between the bottom cover part and the outer cylinder part, the melting adopts the currently-newest low-cost and efficient welding technique, namely the pulse electric arc welding with speed of 1m/min, dual argon tungsten-arc welding or dual-wire welding; compared with the traditional welding joint which adopts resistance seam welding and is between the bottom cover and outer cylinder parts of the dual-cylinder shock absorber, the shock absorber can reduce the material quantity and the dead weight, and accordingly facilitates reducing the product cost and realizing better finished vehicle performance.

The invention relates to a composite engine hood inner panel of an electric vehicle. An engine hood inner panel and an engine hood outer panel are connected in a gluing manner through an adhesive; theengine hood inner panel is provided with a flange; the gluing connection structure comprises a plurality of hoppers, stop blocks and a spill-proof block; the hoppers are respectively arranged on theflange of the engine hood inner panel; the stop blocks are arranged on the side near the outer panel, in the hoppers; the shape of each of the stop blocks is matched with that of the corresponding hopper; the stop blocks are higher than the plane of the inner panel; two kinds of adhesive with different properties can be separated by the stop blocks to achieve hybridization gluing; the spill-proofblock is located on the side near the inner panel, of the outer panel; the shape of the spill-proof block is determined according to the shape of the edge of the inner panel; the spill-proof block ishigher than the plane of the inner panel to prevent the adhesive form spilling; the composite-material engine hood inner panel disclosed by the invention is formed by adopting integrated injection molding of composites, and is low in the mold opening cost and high in the production efficiency; and through adoption of the hybridization connection, mechanical properties of different cohesive glue layers are reasonably utilized, the stress concentration at end heads is reduced, better adhesive properties are achieved, beautiful appearance of gluing is guaranteed, and the cost is saved.

The invention discloses a mixed arm type overhead working truck. The mixed arm type overhead working truck comprises hydraulic supporting legs, an automobile chassis, a rotary table, a low variable-amplitude hydraulic cylinder, an upper variable-amplitude hydraulic cylinder, a lower main arm, an upper main arm, a lower telescopic arm, an uppper telescopic arm, a working platform, a working platform pedal and a working platform leveling mechanism, wherein the hydraulic supporting legs are arranged on the bottom of the automobile chassis; the rotary table is arranged on the automobile chassis; and the lower main beam is hinged on the rotary table. The mixed arm type overhead working truck is characterized in that the section of the lower telescopic arm is octahedral, and the section of the upper telescopic arm is hexagonal. According to the mixed arm type overhead working truck disclosed by the invention, upper and lower telescopic arms with different sections are adopted, and reinforcing ribs are mounted on the lower telescopic arm and the upper telescopic arm, so that strength, rigidity and stability of the overhead working truck with relatively high operating height (50m-110m) further can be guaranteed, and therefore, the performance of the whole truck is improved. Meanwhile, a weight reducing hole in the lower telescopic arm can reduce dead load of an arm rest of the overheadworking truck, reduces mass of the whole truck, and reduces production and operation cost.

The invention discloses a novel carbon fiber steering tie rod mechanism. The novel carbon fiber steering tie rod mechanism is characterized by comprising a rod body, wherein the rod body is a hollow rod body prepared from a carbon fiber material, a front connector and a rear connector are arranged at two ends of the hollow rod body, the front connector, the rear connector and the hollow rod body are fixedly connected, the front connector is provided with a connecting assembly I connected with a steering gear, the rear connector is provided with a connecting assembly II connected with a steering knuckle, and a travel adjusting mechanism is also arranged between the rear connector and the connecting assembly II connected with the rear connector. The novel carbon fiber steering tie rod mechanism only comprises the hollow rod body, the front connector and the rear connector, is simple in structure and convenient to manufacture, meanwhile the hollow rod body is made from the carbon fiber material, the front connector and the rear connector are aluminum products, and the weight of the tie rod mechanism is reduced on the premise that the strength and safety performance of a vehicle are ensured. In addition, the novel carbon fiber steering tie rod mechanism is simple in manufacturing, and industrial production is facilitated.

The invention discloses a trailer traction saddle welding process method and relates to the technical field of welding. In order to solve the problems that after the trailer traction saddle is welded through an existing welding method, a sliding plate of the trailer traction saddle is seriously deformed, the qualified rate of finished products is lower due to the fact that errors exist in the length and the width of a blank caused by adopting manual operation during blanking in the initial stage, a numerical control cutting machine is adopted for the blanking, a plate bending machine is used for bending a cut plate, three kinds of reinforcing ribs are manufactured, the size and quality of a reinforcing groove are guaranteed, it is guaranteed that assembly gaps of welding joints are uniform and consistent in the subsequent assembly process, and the welding deformation amount is reduced; secondly, leftover materials are used for the blanking and bending manufacturing, so that the production cost of the products is reduced, and the total weight of a whole trailer is further reduced, and by adopting the welding mode, the phenomenon of serious deformation of the sliding plate after welding operation is prevented, so that the qualified rate of the finished products is improved, and the working efficiency is improved. The method is suitable for the technical field of welding.