156results about How to "Reduce wiring harness" patented technology

The invention discloses an AGV (automatic guided vehicle) control platform having a distributed structure, which comprises a main node and three secondary nodes which are communicated through LIN (local interconnect network) bus bidirectional data, wherein the three secondary nodes are mutually independent and all have LIN interface modules for communicating with the main node based on the LIN bus communication and specific local identifiers; the main node comprises a main control board, an LIN interface module, an infrared tracking module, a motor driving module and a power supply module; and each secondary node comprises a driven control board for controlling and feeding back the AGV running and acquiring the tracking information for the main node to process procedures, an ultrasonic barrier-avoiding module, a temperature detection module, a vehicle acceleration inclining-detection module, a vehicle infrared left-wheel speed-measuring module, an electric quantity detection module and a vehicle infrared right wheel speed-measuring module. By using the LIN bus technique to realize the connection between sensors in the AGV system, the wires are reduced while the maintaining cost is lowered. Because of the high reliability and high anti-interference property, the whole system is more stable and reliable.

The invention provides a fingerprint-based speed limiting device of an automatic transmission automobile, and a control method thereof, belonging to the technical field of automobiles. The problem that the highest driving speed is not limited through fingerprint identification corresponding to different identities can be solved by the invention. The device comprises a fingerprint sensor for acquiring biological fingerprints and an EMS (electronic monitoring system), wherein an electronic air throttle and a fingerprint identification controller are respectively connected on the EMS, the fingerprint identification controller is connected with the fingerprint sensor, a host interface is further connected on the fingerprint identification controller, the fingerprint identification controller is used for receiving fingerprint data detected by the fingerprint sensor, performing storage, comparison and deletion on the fingerprint data in a fingerprint database according to input signals of the host interface and outputting a set control speed limiting signal to the EMS, and the EMS is used for controlling the opening degree of the electronic air throttle. The control method comprises the following steps of: A. performing fingerprint identification and registration; B. judging the control conditions for starting speed limitation; and C. judging fingerprint information. The device and the method are based on a fingerprint identification technology and can limit the highest driving speed for different users.

The disclosed experiment device for mixed-power vehicle power assembly comprises: a motor connected to the engine and clutch and the power supply through an inerter, a power analyzer connected to the detector, the supply and the sensor in motor loop to analyze collected different currents and record working state precisely; a cell management unit, a motor controller, and other controllers for motor, gear-box, and multi-energy, and a meter unit all connected to the detector by CAN bus.

A control system for the automobile using mixed power features that its controller for multiple energy sources, motor controller, accumulator managing unit, engine managing unit, ABS controllr and TCU controller are connected via CAN bus, and said controller for multiple energy sources is serially connected between electronic throttle pedal and electronic air throttle for controlling both engine and electric motor.

The invention provides a distributed automobile line control steering system, which is disposed between a steering wheel and a direction steering machine connected on a wheel, the distributed automobile line control steering system comprises a FlexRay bus, several FlexRay nodes, a rotation angle torque sensor, a road sensing motor, a displacement sensor, and a steering motor, the rotation angle torque sensor and the road sensing motor are both connected with the steering wheel, the displacement sensor and the steering motor are both connected with the steering machine, the rotation angle torque sensor, the road sensing motor, the displacement sensor, and the steering motor are respectively connected with a different FlexRay node in the several FlexRay nodes, all the FlexRay nodes in the several FlexRay nodes are connected with the FlexRay bus. The distributed automobile line control steering system and the control method are advantageous in that, a distributed redundant structure is adopted, and a FlexRay communication protocol is used, facilitating reduction of automobile wire harness, the distributed automobile line control steering system and the control method are also advantaged by good capacity expandable performance, open performance, real time performance, and high reliability, convenient debugging, and facilitation of safety guarantee.

The invention discloses a vehicle-mounted control system with a domain control function and an upgrading method, and relates to the technical field of automotive electronics. The system compires a central domain controller and a display device, the display device is connected with the central domain controller through an LVDS interface; a vehicle-mounted electronic module is connected with the central domain controller through the Ethernet; and a gateway connected with the central domain controller through a CAN interface and the Ethernet, wherein the input signal processing unit receives andprocesses signals of the gateway and the vehicle-mounted electronic module, and then the output driving circuit unit sends the signals to corresponding display devices for display through an LVDS interface and sends the signals to the vehicle-mounted electronic module for execution through an Ethernet communication interface. Due to the fact that the central domain controller is introduced, vehicle-mounted electronic modules, display equipment and the like which can use the same interface and communication protocol are concentrated, the interface and the communication protocol can be degenerated, the mutual dependence between wire harnesses and parts is reduced, a vehicle-mounted control system of an automobile is safer, and the flexibility of the system is improved.

The invention relates to a controller, which aims at realizing the functions of the network controller that interconnecting different networks by gateway, collecting and analyzing the information of the systems in a vehicle and controlling output. The technical proposal of the invention is that the network controller of the vehicle comprises a micro-controller unit, a power management module connected with the micro-controller unit, a clock vibrator module, a reset module, a CAN communication module and/or a LIN communication module; wherein the micro-controller unit is communicated with equipment connected on the vehicle network through the CAN communication module or the LIN communication module to receive the information of the equipment and transmit control message to the equipment; the micro-controller unit is connected with other electronic devices, such as an instrument, a vehicle body control system and an upper computer in the vehicle through the CAN communication module on the micro-controller unit; a wireless access module is also arranged in the controller; and the micro-controller unit transmits the information to a remote terminal through the wireless access module, so as to forward a control command of the remote terminal to the devices in the vehicle.

The invention discloses a power distribution box for an electric car, which belongs to the field of electric car circuits. The power distribution box comprises a shell and an electronic system arranged in the shell, wherein the electronic system comprises a high-voltage discharging circuit, a charging circuit, a control module and a battery connector assembly for being connected with a battery of the electric car, the high-voltage discharging circuit comprises a motor controller circuit, a direct current converter circuit, a heater circuit and an alternating current power supply circuit, and the motor controller circuit, the direct current converter circuit, the heater circuit and the alternating current power supply circuit are all connected with the battery connector assembly; the charging circuit comprises a quick charging circuit and a slow charging circuit, and both the quick charging circuit and the slow charging circuit are connected with the battery connector assembly; and the control module is used for control the connection and disconnection between at least one of the motor controller circuit, the DC converter circuit, the heater circuit, the AC power supply circuit, the quick charging circuit and the slow charging circuit and the battery connector assembly. By adopting the power distribution box, the cost of the whole car is decreased.

The invention discloses an automobile body control system. The automobile body control system comprises a front automobile body controller and a rear automobile body controller, the front automobile body controller communicates with the rear automobile body controller by using LIN bus, wherein the integration of a small relay module at front warehouse, a backing radar module and a rear - view mirror folding module is arranged on the rear automobile body controller. The system enhances the anti-interference performance and reliability of the automobile body control system, improves the rate of information transmission so as to make the automobile controlling more intelligent and strengthen the security of automobiles, and meets the requirements of users at utmost.

The present invention shortens the harness of a power supply system which is thick, heavy and difficult to assemble as much as possible to improve workability in a saddle-type vehicle, such as an automatic two-wheeled vehicle, and reduce the weight and cost of the saddle-type vehicle. An air cleaner (29) and a fuel tank (30) are both disposed toward the rear so as to be posteriorly separated from a head pipe (6). A regulator (41), a relay box (42), and a fuse box (43) are disposed in an electronic component installment space (S) located between the head pipe (6) and the air cleaner (29) and the fuel tank (30). The fuel tank (30) is disposed toward the rear such that the rear end portion of the fuel tank (30) is positioned more rearward and downward than the rear end of a main frame (8).

The invention discloses a step motor coil device, which is used for an electronic expansion valve of an air conditioner, which comprises a coil winding (1) and a driving circuit board (2), wherein a driving interface (21) and a circuit board bus interface (22) are arranged on the driving circuit board (2), the driving interface (21) is connected with the coil winding (1), the air conditioner comprises a main control board, a main control board bus interface is arranged on the main control board, and the circuit board bus interface (22) is connected with the main control board bus interface. Through the structure design of the device, the main control board structure of the electronic expansion valve can be simplified, and in addition, wire beams connected with the main control board are reduced. In addition, the invention also discloses the electronic expansion valve comprising the step motor coil device.

A single line bidirectional communication method of a reconfigurable controller belonging to the technology field of communication engineering is provided. Through upper computer interface conversion module, the invention transforms positive and negative logical signals of serial communication into difference voltage signal and sends to a signal processing module, wherein, a microprocessor is for processing and responding to delivered message protocol, conversely, the information can also be sent from reconfigurable controller to the upper computer, and the delivered message protocol can be responded by the upper computer, during responsion, corresponding operations are executed according to different operating commands, the commands comprise starting parameterization, reading erasable memorizer operation, writing erasable memorizer operation, whole piece erasure operation of the erasable memorizer, stopping parameterization; during the operation execution, the communication state is displayed in real-time according to real-time communication state. By utilizing the characteristic of single line communication in the invention, wire harnesses are reduced for more than a half than universal serial or other wired communication, thereby realizing the stability of information interaction and data transferring of each numerical module.

The embodiment of the invention provides a battery management system and an electric vehicle and relates to the technical field of electric vehicles. The battery management system comprises a controller, a first acquisition module and a second acquisition module, the controller is electrically connected with the first acquisition module and the second acquisition module through a daisy chain, thefirst acquisition module and the second acquisition module are electrically connected with a battery pack, and the battery pack comprises a plurality of single batteries; the first acquisition moduleis used for acquiring voltage information and temperature information of each single battery; the second acquisition module is used for acquiring total current information and total voltage information of the battery pack; the controller is used for monitoring and managing the battery pack according to the voltage information, the temperature information, the total current information and the total voltage information. The system has the advantages of being low in cost and meeting the functional safety ASIL C requirement.

The invention relates to a method for LIN-based intelligent grid network control. The method comprises a step (1) of arranging an intelligent grid module on a grid to form an intelligent grid; a step (2) of performing a full vehicle state judgment by an engine management system; a step (3) determining, by the engine management system, grid opening and closing and/or opening range according to judgment results of the step (2); a step (4) of causing the engine management system to communicate with the intelligent grid module through a LIN bus; and a step (5) of implementing opening and closing control of the intelligent grid and/or fault query through the communication in the step (4). By the communication between the engine management system and the intelligent grid module through the LIN bus, the opening and closing control of the grid and fault query are implemented, a harness is simplified, the cost is reduced, fuel economy is improved, the wind resistance coefficient and oil consumption are reduced, and the network communication efficiency and reliability are improved.

The invention pertains to the field of water-electrolytic hydrogen making and power generation by a micro turbine and relates to a combined water-electrolytic hydrogen making and power generating machine made up of a micro turbine and a switched reluctance motor, including the micro turbine, a high-speed switched reluctance motor and water-electrolytic hydrogen making equipment; wherein the micro turbine is directly connected with the high-speed switched reluctance motor by a shaft and the current of the switched reluctance motor is connected with the grid through an inverter. The input end of the inverter is also connected with a DC-DC converter, which provides electric energy for the water-electrolytic hydrogen making equipment. The hydrogen produced by the water-electrolytic hydrogen making equipment serves as the fuel of the micro turbine. The combined power generator makes use of the direct connection between the micro turbine and the high-speed switched reluctance motor and simultaneously adopts the power generating method by which the water-electrolytic hydrogen making equipment is adopted to improve the efficiency of the micro turbine system so as to realize more proper recycling use of the energy.

The invention relates to a vehicle instrument system, which comprises a controller local area network bus for transmitting a controller local area network bus signal and a first controller local area network module coupled to the controller local area network bus. The first controller local area network module is used for receiving a controller local area network bus signal transmitted from the controller local area network bus and converting the controller local area network bus signal into an information signal. The vehicle instrument system further comprises an instrument panel and a processor which is coupled with the first controller local area network module and the instrument panel. The processor is used for receiving the information signal and controlling the instrument panel to display information corresponding to the information signal.

The invention discloses a multi-node vehicle control system for a small racing car. The multi-node vehicle control system comprises a front cabin acquisition ECU, a panel interaction ECU, a vehicle control ECU, a vehicle isolation CAN bus, an accelerator angular displacement sensor, a steering wheel angle sensor, a front wheel speed sensor, a braking angular displacement sensor, a mode control knob, a high-voltage closing button, a motor enabling button, a buzzer, a brake lamp and a drive system indicator lamp. The control system uses the vehicle isolation CAN bus for receiving and sending data, multiple CAN nodes are adopted so that wiring harnesses can be effectively reduced, and data acquisition and processing are more convenient and efficient; meanwhile, the multiple ECUs are adopted, each ECU can achieve data acquisition, human-computer interaction and vehicle control functions, the purpose that multiple tasks are conducted at the same time is achieved, the response speed is increased, and stability is improved; and by the adoption of the control system, a control program is more convenient to write and debug, and the system is more suitable for the FSAE pure electric formula racing car.

The invention discloses a multi-sensor automobile racing state information acquisition system. The objective of the invention is to solve the problems of functional simplicity, difficult data acquisition and poor data sharing of an automobile racing data acquisition system. The multi-sensor automobile racing state information acquisition system includes a Freescale single-chip microcomputer, a wheel speed sensor, a GPS, an engine ECU, a data acquisition device, a battery and a voltage-regulator chip; the battery and the voltage-regulator chip are connected with the Freescale single-chip microcomputer sequentially; the wheel speed sensor, an acceleration sensor, a rotation angle sensor, a suspension displacement sensor and the GPS are connected with the 5V ends of the Freescale single-chip microcomputer and the voltage-regulator chip; the engine ECU and the data acquisition device are connected with the 12V end of the battery; the signal line of the wheel speed sensor is connected with the pulse counting port of the Freescale single-chip microcomputer; the signal line of the rotation angle sensor and the signal line of the suspension displacement sensor are connected with the AD ports of the Freescale single-chip microcomputer; and the GPS is connected with the UART_TXD serial port and UART_RXD serial port of the Freescale single-chip microcomputer.

The invention discloses a vehicle inverter comprising a housing; a cooling base plate disposed between the housing and a motor; an upper cover fixed to an upper end of the housing for sealing the opening in the upper end of the housing, wherein the cooling base plate is fixed with a capacitor, a power module, a current sensor and an AC terminal block; the upper cover is fixed with a DC terminal block; and a circuit board is arranged above the power module and the current sensor. According to the vehicle inverter of the present invention, the power module, the circuit board, the capacitor, the current sensor and the AC terminal block are integrated on the cooling base plate through a specific position relation; the upper cover is installed on the housing; the DC terminal block is integrated on the upper cover of the inverter to reduce busbars and sensor wire harnesses in other inverters so as to satisfy requirements for a more compact structure, a better heat radiation effect, higher electromagnetic compatibility, high reliability and axial arrangement with the motor of the vehicle inverter.

The invention relates to the technical field of automatic adjustment of automobile headlamp low beams and discloses an automobile lamplight automatic adjusting method and system. The automobile lamplight automatic adjusting method includes the following steps that a light adjustment control unit acquires and analyzes axial accelerated speed and angular speed data obtained by a G sensor installed in the light adjustment control unit; the light adjustment control unit obtains automobile information through an automobile body bus and recognizes the state of an automobile; the light adjustment control unit calculates the current automobile head inclination angle of the automobile according to the axial accelerated speed data; and according to the state of the automobile, the light adjustment control unit controls a light adjustment execution mechanism to adjust the irradiation distance of headlamps according to the automobile head inclination angle and selectively according to the angularspeed data. Light adjustment accuracy is high, no external equipment is needed, the cost of the whole system is reduced, the risk that the whole system fails due to the severe use environment of an automobile chassis is avoided, and the maintenance problem of a height sensor is solved.

The invention discloses a wireless car body control module. The wireless car body control module comprises a microcontroller, a low-frequency driving circuit and a radio frequency receiving circuit, wherein the low-frequency driving circuit and the radio frequency receiving circuit are connected to the microcontroller, and the low-frequency driving circuit is provided with a plurality of low-frequency antennas for converting current signals into magnetic field signals. The wireless car body control module drives the low-frequency antennas to emit a low-frequency magnetic field through adjustable output current, the magnetic field intensity of the low-frequency magnetic field varies with driving current, high-frequency signals are received through the radio frequency receiving circuit, and the wireless car body control module positions and controls a front wiper blade module, a rear wiper blade module, a left front lamp module, a right front lamp module, a left rear lamp module, a right rear lamp module, a left front door module, a right front door module, a left rear door module, a right rear door module and an instrument module which are arranged on a car body through a bi-directional multi-channel wireless signal channel comprising the low-frequency driving circuit and the radio frequency receiving circuit. The wireless car body control module has the advantages of reducing wiring harnesses on a car, being convenient to install, and improving the reliability.