Byd Company Limited

Huawei Technologies Co., Limited

Interface Optoelectronics (shenzhen) Co., Ltd.

General Interface Solution Limited

Interface Technology (chengdu) Co., Ltd.

Ming Chang Yu

Nan Liu

Xiaohua Tang

Jian Gong

Guangming Yang

Xuguang Zhou

Yingwu Xu

Kai Liu

Xianhong Jiang

Qiaoqiao Wu

Jun Zhou

Hongbin Luo

Ting Luo

Tao Pu

Wangjun Wu

Peng Lan

Chung-Wu Liu

Chun-Te Chang

Zhu Tan

Chia Yuan Wu

Chengdong Yu

Wensheng He

An optical image recognition device and a method for fabricating the same are disclosed. The device includes a flexible printed circuit board, an image sensor, a glue, an optical collimator, a supporting ring, a sealant, and an optical filter. The top of the flexible printed circuit board is provided with a recess, the image sensor is located in the recess, the sidewalls of the image sensor and the recess are separated from each other, and the image sensor is coupled to the flexible printed circuit board through conductive wires. The glue adheres to the flexible printed circuit board and the image sensor and covers the conductive wires. The optical collimator is disposed on the image sensor. The supporting ring, disposed on the flexible printed circuit board, surrounds the glue and the optical collimator. The optical filter, disposed on the sealant, shields the optical collimator and the image sensor.

Optical image recognition device and method for fabricating the same

Embodiments of the present invention disclose a network architecture implementing convergence of a small cell and an M2M system, a related method, and a related device. The network architecture includes: a small cell in a small cell system and an M2M platform device in an M2M system. The small cell is connected to a service interface of the M2M platform device by using a first interface, service data in the M2M system is transmitted between the small cell and the M2M platform device by using the first interface, and when the service data needs to be sent to a user terminal served by the small cell, the small cell sends the service data to the user terminal.

Network architecture implementing convergence of small cell and M2M system, related method, and related device

Embodiments of the present invention provide a fault handling method, apparatus and system, and relate to the field of communications, where the method includes: detecting, by a lower-layer fault management system, a fault alarm status in a lower-layer service; obtaining, by means of query by the lower-layer fault management system, according to the fault alarm status and a service dependence relationship table stored in a system, an affected higher-layer service; sending, by the lower-layer fault management system, a fault notification message to a higher-layer fault management system corresponding to the affected higher-layer service; and determining, by the higher-layer fault management system, according to the fault notification message whether a higher-layer service in which a fault occurs needs to be handled.

Fault handling method, apparatus and system

A multi-mode base station and an operating method and a wireless communication system thereof are provided. The multi-mode base station includes: at least two protocol processing modules, vested in at least two modes respectively, and adapted to process data and/or signaling of the mode according to the protocol corresponding to the mode; and an interface processing module, adapted to distinguish the mode of the data and/or the signaling while receiving the data and/or the signaling, and distribute the data and/or the signaling to the protocol processing module corresponding to the mode. Thus, the reconfiguration of the multi-mode base station can be performed more conveniently and quickly.

Multi-mode base station and operating method and wireless communication system thereof

The present invention discloses a method and apparatus for controlling a motor for an electric vehicle. The method and apparatus calculates the current acceleration &#x3b1; of the motor according to the detected rotor position values in real-time, and if the current acceleration &#x3b1; is greater than a predetermined forward acceleration &#x3b1;0, the output torque of the motor is decreased. If the acceleration &#x3b1; is less than a predetermined backward acceleration &#x3b1;1, then the output torque of the motor is decreased. Thus, when the vehicle travels from a normal road surface to a smooth road surface, the decrease or increase output torque may suppress the abrupt speed variations.

Method and apparatus for controlling motor for skid mode of electric vehicle

The present invention provides an apparatus and method for controlling an accelerator for electric vehicles. The method comprises steps of: acquiring an actual accelerator pedal depth value and a current vehicle speed; determining a maximum output torque of motor under the current vehicle speed based on the current vehicle speed; and controlling the output torque of motor in such a way that the growth rate of the output torque higher than that of the actual accelerator pedal depth value at the beginning and then closed to that of the actual accelerator pedal depth value during the actual accelerator pedal depth value growing. The invention makes the output torque grown rapidly within the shallow range of accelerator pedal depth, while makes the output torque grown closed to that of the accelerator pedal depth within the relative deep range of accelerator pedal depth. Thus during the initial stage of acceleration, the vehicle may rapidly output a bigger torque, with an excellent dynamic response, to improve the driving comfort.

Apparatus and method for controlling an accelerator for electric vehicles

A control method of the electromotor comprises: setting a target alternating axis current based on the rotor angular velocity of the electromotor and a target direct axis current based on the torque of the motor; simultaneously detecting three-phase currents and current rotor position angle of the electromotor; converting the three-phase currents to an actual alternating axis current and an actual direct axis current by Park and Clark conversions; inputting the difference between the target current and the actual current to a current loop, outputting the required direct axis current and the required alternating axis current; determining the three phase voltages according to the required direct axis current and alternating axis current and the angle of the electromotor rotor position; obtaining PWM control waveform through three-phase voltages, wherein said PWM control waveform is configured to control the conversion from direct current to alternating current and drives the electromotor.

Control method of electromotor

The present invention provides a clutch engaging control method in a hybrid power output device, wherein the device comprises an engine, a first motor, a clutch and a second motor that are connected in sequence, a battery, and a speed reducing mechanism and a drive shaft that are connected to the output end of the second motor; the method comprises: (a) detecting the rotation speed &#x3c9;of the second motor and setting the rotation speed &#x3c9;as the target rotation speed &#x3c9;of the first motor, when the vehicle is driven by the second motor and the engine is required to be started to provide assistance to the second motor; (b) starting the first motor to drive the engine, and controlling the actual rotation speed &#x3c9;of the first motor to be close to the target rotation speed &#x3c9;; (c) switching the state of the first motor from a driving motor to a power generator when the actual rotation speed &#x3c9;of the first motor is approximately equal to the target rotation speed &#x3c9;; and (d) engaging the clutch. The method can improve the dynamic response time of the engine and suppress impact in the clutch engaging process. The present invention further provides a clutch engaging control system in a hybrid power output device.

Clutch engaging control method and control system in hybrid power output device

An apparatus and method for controlling energy feedback for electric vehicles includes acquiring an accelerator-pedal travel value, a brake-pedal travel value and a current vehicle speed value, and determining whether the brake-pedal travel value is equal to 0%. Feedback torque based on the current vehicle speed value and the brake-pedal travel value with various conditions is then calculated. Mechanical energy generated by the feedback torque T is converted into electric energy and transmitted to battery of the electric vehicle for storing. Accordingly, the endurance mileage of electric vehicle may be effectively prolonged and the utilization efficiency of battery is improved.

Apparatus and method for controlling energy feedback for electric vehicle

The present invention discloses a distributed base station system as well as its networking method and base band unit. In this system, the base band unit (BBU) and RF unit (RFU) of the base station are separated, and the RFU is equipped with base band RF interfaces for interconnecting the BBU and transmitting data information, thereby forming the base station. Based on the separation of the BBU from the RFU, the BBU capacity is further divided at the same time, and every unit is also arranged independently. The BBU networking and capacity expansion may be achieved with capacity expansion interfaces and base band RF interfaces provided by BBU interface units in flexible and convenient ways.

Distributed base station system and method for networking thereof and base band unit

This invention provides methods for electric vehicle motor control and rotor position detection and fault-tolerant processing. The rotor position signal sampled by the system is compared with the previous rotor position &#x3b8;. When there is a sudden change, the current position signal acquired is discarded. Instead, a fault-tolerant processing strategy for use during an error condition is employed where the previous sampled rotor position &#x3b8;is used as a base to determine the corrected current rotor position angle &#x398;'. Then the correcting value is used to control the electric motor. Thus, during the motor operation, when the detection of the motor rotor position is erroneous because of a sensor such as a revolver that may be interfered by external conditions such as electromagnetic fields or vibrations or when there is a breakdown in other related hardware components or transmitting circuits, the fault-tolerant processing methods of this invention can effectively prevent the motor from losing control and allow it to maintain its continuity and stability.

Growing community of inventors

Shenzhen, China

Ming Chang Yu