Abstract: An electric power system for an electric bus includes a battery assembly, a leakage detection device, and a control device. The battery assembly includes a plurality of series-connected battery packs and a plurality of switch elements, wherein each of the battery packs includes a positive terminal, a negative terminal, and a battery cell module, and the battery packs include a first battery pack and a second battery pack; the positive terminal of the first battery pack and the negative terminal of the second battery pack are electrically connected to a load of the electric bus, and at least one of the positive terminal of the first battery pack and the negative terminal of the second battery pack is electrically connected to the leakage detection device, which outputs a leakage signal when a leakage is detected on an electric wire connected between the battery assembly and the load.

Abstract: A power tool comprises a housing, a motor, a first circuit board, and a second circuit board. The housing includes a transmission portion and a handheld portion. The motor and the first circuit board are arranged in the transmission portion, and the second circuit board is disposed in the handheld portion. The first circuit board is provided with a plurality of commutating switch components, a plurality of Hall sensors, and a first controller. The first controller receives a driving signal and controls the commutating switch components to perform commutation according to the driving signal and the position signal from the Hall sensors. The second circuit board is electrically connected to the first circuit board through a transmission line set and provided with a second controller, which transmits the driving signal to the first controller via the transmission line set.

Abstract: A method for monitoring a tire condition includes the following steps: sense a rotational speed of a tire of a moving vehicle via at least one monitoring device of a wireless monitoring system disposed in the vehicle; when the sensed rotational speed reaches a predetermined rotational speed range, obtain a condition of the rotating tire through at least one monitoring device to generate first condition data; compare the first condition data with a plurality of pavement feature data to obtain the corresponding pavement feature data; process with the obtained pavement feature data and the first condition data to filter a pavement feature out of the first condition data, generating second condition data; determine whether the condition of the tire is abnormal based on the second condition data; and send out a warning message when the condition of the tire is determined as being abnormal.

Abstract: A battery pack includes a casing, a battery cell assembly, an encoder, and a monitoring unit; the battery cell assembly is disposed in the casing; the encoder is adapted to generate one of a plurality of types of encoding configurations, and includes an operating section which is adapted for a user to set one of the encoding configurations of the encoder manually; the monitoring unit is adapted to sense a state of the battery cell assembly and generate an identification code according to the encoding configuration of the encoder; wherein, the monitoring unit is further adapted to output a state signal which includes the aforementioned identification code. Whereby, the battery pack of the present invention would be a universal battery pack.

Abstract: An electric power system and a management method thereof. The electric power system includes a plurality of battery packs and a battery management apparatus. Each of the battery packs includes a casing, a battery cell assembly disposed in the casing, an encoder, and a monitoring unit, wherein the encoder could generate one of a plurality of encoding configurations and has an operating section which is adapted to be manually set the encoding configuration by a user; the monitoring unit senses a state of the battery cell assembly and generates an identification code according to the encoding configuration of the encoder, and outputs a state signal including the identification code. The battery management apparatus receives the state signal of each of the monitoring unit and obtain the state of the corresponding battery cell assembly according to the identification code of the received state signal.

Abstract: A battery holder includes at least two connecting shafts, a first lateral frame, and a second lateral frame, wherein two juxtaposed battery assemblies are disposed between the first lateral frame and the second lateral frame. The at least two connecting shafts respectively pass through the corresponding battery modules, and is connected to the first lateral frame and the second lateral frame. The first lateral frame includes two adjacent side frames, each of which includes a first side bar and a second side bar which is opposite to the first side bar. The first side bar has a first perforation, and the second side bar has a second perforation, wherein a width of the first perforation is greater than a width of the second perforation. An engaging member passes through the first perforation and the second perforation, whereby to fix one of the side frames to another one.

Abstract: An insulating casing for battery terminals including a base and a top cover, wherein the base is engaged with a battery pack and includes a bottom plate. The bottom plate has a plurality of perforations adapted to be passed through by the terminals of the battery pack. The top cover is detachably engaged with the base, and a chamber communicating with the perforations is formed between the top cover and the base, and the terminals are received into the chamber whereby an insulating casing to protect the terminals of the battery pack is provided.

Abstract: A battery pack includes a case and a plurality of batteries, wherein the case includes a first body, a second body, and a connecting frame. The first body has a first opening. The second body has a second opening which could match with the first opening. A chamber is formed between the first body and the second body. The connecting frame is connected to the second body, and has a first connecting shaft and a second connecting shaft. The first connecting shaft is adapted to be connected to the first body, and the second connecting shaft is adapted to be connected to a mounting position. The batteries are disposed side by side in the chamber.

Abstract: A battery pack includes a fixing frame, at least one battery assembly, and a monitoring device for monitoring the at least one battery assembly, wherein the battery assembly is disposed on the fixing frame. The battery assembly includes a plurality of battery modules which are arranged along a predetermined axial direction. The monitoring device is disposed on the fixing frame, and is located on a side of the battery assembly in the predetermined axial direction. A minor axis of the monitoring device is located in the predetermined axial direction. In this way, the overall length of the battery pack can be reduced.

Abstract: A conductive sheet and a battery conducting module, wherein the battery conducting module is adapted to electrically connect electrodes of a plurality of batteries which are arranged side by side, and includes two conductive sheets. Each of the conductive sheets includes a connecting portion, two first conducting portions, and two second conducting portions. The connecting portion has a first side and a second side. The two first conducting portions are spaced from each other by a distance and are connected to the first side, and extend along a first direction. The two second conducting portions are spaced from each other by a distance and are connected to the second side, and extend along a second direction. The second direction is opposite to the first direction. The conductive sheets are respectively adapted to connect the electrodes of batteries and are disposed facing each other.

Abstract: A writer for a tire pressure sensor is disclosed, which is adapted to hold the tire pressure sensor to write a program to the tire pressure sensor. The tire pressure sensor has a first connection port. The writer includes a housing, a positioning member, and an ejection device. A surface of the housing forms a receiving recess, and a second connection port is provided in the receiving recess. When the tire pressure sensor is received in the receiving recess, the first connection port thereof is connected to the second connection port. The positioning member connected to the housing has a block section abutting against the tire pressure sensor to keep the first connection port being connected to the second connection port. The ejection device is adapted to exert a pushing force on the tire pressure sensor to eject it for separating the second connection port from the first connection port.

Abstract: An electric power tool includes a wireless module, a controller, a stage-selection module, a trigger switch, a driver and a driving motor. The method for operating the electric power tool includes steps of receiving a wireless signal from the outside via the wireless module, wherein the wireless signal includes a plurality of control parameters; storing the control parameters into the memory; upon receiving a stage-selection signal, extracting a control parameter in accordance with the stage-selection signal from the memory; upon receiving a triggering signal, outputting a control signal to the driver so as to drive the driving motor, wherein the control signal is output based on a torque value of at least one control parameter which is corresponding to the stage-selection signal. It allows a user to change the settings of the electric power tool via wireless communication, thereby increasing the flexibility of using the electric power tool.

Abstract: A method for monitoring a tire condition includes the following steps: sense a rotational speed of a tire of a moving vehicle; when the sensed rotational speed reaches a predetermined rotational speed range, obtain a condition of the rotating tire through at least one sensor to generate a piece of first condition data; compare the first condition data with a plurality of pieces of pavement feature data to obtain the corresponding one; process with the obtained piece of pavement feature data and the first condition data to filter a pavement feature out of the first condition data, generating a piece of second condition data; determine whether the condition of the tire is abnormal based on the second condition data; and send out a warning message when the condition of the tire is determined as abnormal Whereby, the road security is improved.

Abstract: A device for suppressing high-voltage electricity is connected to a three-phase circuit of an electric generator, including three up arm semiconductor switches, three low arm semiconductor switches, three reverse breakdown diodes respectively connected to the low arm semiconductor switches in parallel, and a control circuit sending PWM signals to turn on and off the low arm semiconductor switches sequentially to evenly share and absorb the energy of surge voltage. Each of the up arm semiconductor switches has a first terminal and a second terminal, wherein the first terminals are electrically connected together, and the second terminals are respectively electrically connected to one of three coils of the three-phase circuit. Each of the low arm semiconductor switches has a first terminal and a second terminal, wherein the first terminals are respectively electrically connected to the second terminals of the up arm semiconductor switches, and the second terminals are electrically connected together.

Abstract: An ID code learning device includes a RF transceiving module, a received signal strength indication (RSSI) module, and a processing circuit. The RF transceiving module receives RF signals, and each of the RF signals contains an ID code. The RSSI module is electrically connected to the RF transceiving module to detect signal strengths of the RF signals received by the RF transceiving module. The processing circuit is electrically connected to the RF transceiving module and the received signal strength indication module respectively. The received signal strength indication module detects the RF signal with the highest signal strength, the processing circuit pairs the ID code thereof with a predetermined tire location code, and then the RF transceiving module transmits a pairing result out.

Abstract: An impact power tool includes a motor, a battery, a hammer mechanism and a control apparatus. The motor runs in the same speed no matter what torque level is selected. The motor runs for a total running time which is identical to an impacting time plus a compensative time. The impacting time is decided according to the selected torque level, and the compensative time is decided according to the power of the battery. An impacting time table and a compensative time table are pre-established to decide the impacting time value and the compensative time value. Therefore, the impact power tool always provides the theory torque output of the selected torque even if the battery is low.

Abstract: A power driving device includes six semiconductor switches and three reverse breakdown diodes. The semiconductor switches has a first end and a second end respectively, and the semiconductor switches are three upper arm semiconductor switches and three lower arm semiconductor switches, wherein end first ends of the upper arm semiconductor switches are electrically connected together, and the second ends electrically connected to each coil of a three-phase coil assembly; the second ends of the lower arm semiconductor switches electrically connected together, and the first ends electrically connected to the second ends of the upper arm semiconductor switches respectively; each diode has an anode and a cathode, wherein the anodes are electrically connected to the second ends of the upper semiconductor switches respectively, and the cathodes are electrically connected to the first ends of the upper arm semiconductor switches respectively.