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332 results about "Automotive control systems" patented technology

Range extended electric vehicle control system and method

The invention discloses a range extended electric vehicle control system, and relates to a whole vehicle control system. The range extended electric vehicle control system comprises an engine controlled by the conventional throttling valve, a generator which is integrally connected with a crank shaft of the engine and has functions of generating power and driving, a vehicle-mounted power battery, a whole vehicle controller, a range extender controller, a battery management system, a battery direct current sensor, an engine controller unit, a generator controller unit, a generator end direct current sensor and a permanent magnet synchronous driving motor, wherein the permanent magnet synchronous driving motor, the power battery and the generator are connected to a power line and used for driving wheels, a motor controller, a motor direct current sensor, the throttling valve and a crank shaft position sensor; the range extender controller communicates with the engine controller unit and the generator controller unit and sends a control instruction; and the range extender controller manages power generation energy and controls an auxiliary system according to a demand of a driver and a state of a range extender system. The invention also discloses a range extended electric vehicle control method. The range extended electric vehicle control system and the range extended electric vehicle control method can be used for electric automobiles.
Owner:BEIJING ELECTRIC VEHICLE

Pilotless automobile control system and automobile with same

The invention discloses a pilotless automobile control system and an automobile with the same. The pilotless automobile control system comprises an acquiring subsystem, a sensing and identifying subsystem, a local map subsystem, a route planning subsystem and a driving control subsystem, wherein the acquiring subsystem acquires vehicle states and driving environment information of the pilotless automobile, the sensing and identifying subsystem analyzes the vehicle states and the driving environment information so as to extract obstacle information and tracking movement target information, the local map subsystem sets up a local map by utilizing the pilotless automobile as the center according to the obstacle information and the tracking movement target information, the route planning subsystem can generate driving routes of the pilotless automobile according to the preset map and the local map and plan a local route according to the driving route, the obstacle information, the tracking target information and the traffic rules, and the driving control subsystem generates control commands according to the local route planning and controls the pilotless automobile according to the control commands. Data and system processing in various automobile driving environments can be completely considered, and pilotless driving is more reliable.
Owner:BYD CO LTD

Range-extending electric vehicle control system and method

The invention relates to a range-extending electric vehicle control system and method, belonging to the technical field of vehicle control of electric vehicles. The range-extending electric vehicle control system comprises a vehicle-mounted power battery, a driving motor, a range extender, a transmission box, a vehicle control unit (VCU), a battery management system (BMS) and a motor control unit (MCU), wherein the range extender consists of a small-sized engine, a power-generating/driving integrated generator, an engine control unit and a power generator control unit; the range extender is used for supplying power to the vehicle-mounted power battery or directly driving the motor; the vehicle control unit is used for carrying out vehicle traveling drive control according to the driver demands and states of all subsystems of the vehicle, managing the vehicle energy and transmitting instruments of various working states to sub nodes of the range extender. According to the range-extending electric vehicle control system and method disclosed by the invention, on the promise of battery system safety and service life and with avoidance of frequent start and stop of the range extender as a target, control over power generation through braking energy recovery and control over power generation of the range extender are coordinated; and when the electric vehicle travels for a long trip, the range extender can be controlled to start or stop, and thus the requirement of extending the driving range of the vehicle is met.
Owner:BEIJING ELECTRIC VEHICLE

Distributed driving automobile control system based on hierarchical coordination and distributed driving automobile control method based on hierarchical coordination

The present invention provides a distributed driving automobile control system based on hierarchical coordination. The system comprises a vehicle speed sensor, a steering wheel steering angle sensor, a steering wheel torque sensor, a power-assisted motor armature current sensor, a throttle pedal signal processing module, a brake pedal signal processing module, a driving motor state monitoring module, a gyroscope, a CAN bus, a coordination controller, an electric power steering system (EPS) controller, a torque distribution controller, a right front wheel driving motor controller, a left front wheel driving motor controller, a right back wheel driving motor controller and a left back wheel driving motor controller, a power-assisted motor and four driving motors. The present invention also provides a distributed driving automobile control method based on the hierarchical coordination. The system and method of the present invention enable the mutual influence of an EPS and a torque distribution system to be reduced effectively, carry out the working condition coordinated control on the EPS and the torque distribution system on the basis of guaranteeing the optimal comprehensive performance of a whole automobile, and enable the handling stability of a distributed driving automobile to be improved effectively.
Owner:JIANGSU UNIV

Automobile control system software upgrading system and method

The invention discloses an automobile control system software upgrading system and method. The method comprises the steps that an OTA server stores software upgrading packages of a vehicle-mounted CANcontroller and a vehicle-mounted Ethernet controller, and a remote information processor downloads the software upgrading packages of the vehicle-mounted CAN controller and the vehicle-mounted Ethernet controller from the OTA server; the central safety gateway performs integrity verification on the software upgrade packages of the vehicle-mounted CAN controller and the vehicle-mounted Ethernet controller, and sends the software upgrade packages of the CAN controller to the vehicle-mounted CAN controller for software upgrade; sending the software upgrading packet of the vehicle-mounted Ethernet controller to the vehicle-mounted Ethernet controller through the Ethernet for software upgrading; the vehicle-mounted CAN controller carries out firmware upgrading on the vehicle-mounted CAN controller according to the vehicle-mounted CAN controller firmware information table and by utilizing the firmware flashing task table; the upgrading efficiency of the automobile control system software can be improved, and the development period of the automobile control system software is shortened.
Owner:DONGFENG MOTOR CORP HUBEI

Control system and method for electric vehicle

The invention relates to a control system and method for an electric vehicle. The system comprises a vehicle control unit, a rear driving motor, a rear driving motor controller, an automatic transmission, a first hub motor, a second hub motor, a first hub motor controller, a second hub motor controller, a sensor module, a battery and motor high-voltage power supply device and a power source management system, wherein the rear driving motor is mechanically connected with two rear wheels through the automatic transmission, the automatic transmission is integrated in the rear driving motor and connected with the two rear wheels through a driving axle, and the first hub motor, the second hub motor, the first hub motor controller and the second hub motor controller are installed in hubs of two front wheels correspondingly. The two front wheels can be controlled independently and do not slip, and thus tire abrasion is reduced. The rear driving motor integrated with the automatic transmission is adopted, the rear driving motor is made to work in a high-efficiency zone, the service life of the rear driving motor is prolonged, and the mileage is increased. Four-wheel driving is adopted so that emergency acceleration can be achieved. Motor auxiliary braking control is adopted, so that the braking performance of the whole vehicle is improved. Energy loss is reduced by recycling braking energy.
Owner:NANJING YUEBOO POWER SYST CO LTD

Displacement control method for hub motor fluid power system variable pump

The invention relates to a displacement control method for a hub motor fluid power system variable pump, and belongs to an automobile control system. The revolving speed of front wheels follows the revolving speed of rear wheels. The displacement control method is mainly divided into static regulation and PI (proportional integral) regulation, wherein the static regulation comprises two steps of gear estimation and displacement table search; the table is directly searched according to the estimated gear to obtain a constant value displacement, i.e. the static displacement; the PI feedback regulation of the difference value of the front wheel speed and the rear wheel speed needs to be added to correct the static displacement. The displacement control method for the hub motor fluid power system variable pump has the advantages that the front wheel speed and the rear wheel speed of the automobile can be consistent under the control of the control method when the system is under the auxiliary driving working condition, and the trackslip efficiency of the whole automobile is optimal while the hub motor fluid power system is controlled to obviously improve the passage capacity of the whole automobile on a low-adhering road surface or a road surface with a big slope.
Owner:JILIN UNIV

Pouring sealant for electronic components of automobile control system and preparation method thereof

The invention which relates to a pouring sealant for electronic components of an automobile control system and a preparation method thereof belongs to the technical field of high molecular materials. The pouring sealant comprises a component A and a component B, wherein the component A comprises, by weight, 90-120 parts of alpha-omega-dihydroxypolydimethylsiloxane, 20-35 parts of silicone oil, 4-6 parts of a heat conduction filler, 45-75 parts of a flame retardation filler and 30-35 parts of heavy calcium carbonate; and the component B comprises, by weight, 80-90 parts of the silicone oil, 17-20 parts of a crosslinking agent, 5-6 parts of a coupling agent, 1.5-3 parts of a catalyst and 2-3 parts of a colored slurry. The pouring sealant has the advantages: above formula is reasonable, so the flame retardation of the pouring sealant can be effective increased, the heat conduction effect can be greatly improved, and heat radiated by the components in an integrated circuit board is timelyand effectively conducted to the outside; the electrical property is excellent; the adhesion is good; and the corrosion resistance is ideal. A recommended preparation method of the pouring sealant has the advantages of concise process, and low requirements on the process and equipment.
Owner:江苏明昊新材料科技股份有限公司
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