Abstract: A running-linked sound producing device produces a running-linked sound according to a running state of a vehicle. The running-linked sound producing device includes a vehicle speed estimation unit to estimate a vehicle speed of the vehicle, an accelerator command value estimation unit to estimate an accelerator command value based on a vehicle speed estimated by the vehicle speed estimation unit, and a running-linked sound generation unit that generates a running-linked sound, wherein the running-linked sound generation unit generates a running-linked sound based on a vehicle speed estimated by the vehicle speed estimation unit and an accelerator command value estimated by the accelerator command value estimation unit.

Abstract: A running-linked sound generation unit includes an order sound data generation unit, a random sound data generation unit, and a synthesis unit. The order sound data generation unit generates order sound data by changing the tone of basic order sound data according to a motor rotation speed of a vehicle. The random sound data generation unit generates random sound data by changing the volume of basic random sound data according to a motor rotation speed and an accelerator command value of a vehicle, without changing the tone of the basic random sound data. The synthesis unit generates synthetic sound data by combining synthesized order sound data and random sound data.

Abstract: A running-linked sound generation unit includes an order sound data generation unit, a random sound data generation unit, and a synthesis unit. The order sound data generation unit generates order sound data by changing the tone of basic order sound data according to a motor rotation speed of a vehicle. The random sound data generation unit generates random sound data by changing the volume of basic random sound data according to a motor rotation speed and an accelerator command value of a vehicle, without changing the tone of the basic random sound data. The synthesis unit generates synthetic sound data by combining synthesized order sound data and random sound data.

Abstract: A running-linked sound producing device produces a running-linked sound according to a running state of a vehicle. The running-linked sound producing device includes a vehicle speed estimation unit to estimate a vehicle speed of the vehicle, an accelerator command value estimation unit to estimate an accelerator command value based on a vehicle speed estimated by the vehicle speed estimation unit, and a running-linked sound generation unit that generates a running-linked sound, wherein the running-linked sound generation unit generates a running-linked sound based on a vehicle speed estimated by the vehicle speed estimation unit and an accelerator command value estimated by the accelerator command value estimation unit.

Abstract: An electric bike includes a wheel driving apparatus. The wheel driving apparatus includes an electric wheel drive motor which drives a wheel, a gap changer which changes a gap length in the wheel drive motor, and a motor control unit which controls the wheel drive motor and the gap changer. The motor control unit calculates a target gap length for the gap changing motor in the gap changer based on an accelerator opening-degree signal, a rotation speed, a q-axis electric-current command value, a power source voltage, and a voltage utilization rate. Then, a feedback control is provided to the gap changer based on a difference value between the target gap length and the actual gap-length. A good vehicle characteristic is obtained without being affected by individual variability or operating environment of the electric motor through efficient drive of the electric motor from a low-speed range through a high-speed range.

Abstract: An electric bike includes a wheel driving apparatus. The wheel driving apparatus includes an electric wheel drive motor which drives a wheel, a gap changer which changes a gap length in the wheel drive motor, and a motor control unit which controls the wheel drive motor and the gap changer. The motor control unit calculates a target gap length for the gap changing motor in the gap changer based on an accelerator opening-degree signal, a rotation speed, a q-axis electric-current command value, a power source voltage, and a voltage utilization rate. Then, a feedback control is provided to the gap changer based on a difference value between the target gap length and the actual gap-length. A good vehicle characteristic is obtained without being affected by individual variability or operating environment of the electric motor through efficient drive of the electric motor from a low-speed range through a high-speed range.

Abstract: A hybrid vehicle that can reduce power consumption when an engine of the vehicle is restarted. The hybrid vehicle has a generator-motor that generates electric power. An engine drives the generator-motor. A battery stores the electric power. In one arrangement, the generator-motor starts the engine by being supplied with the electric power stored in the battery. A control device regulates an upper limit of the electric power that is used to activate the generator-motor.

Abstract: A hybrid vehicle enabling reliable travel to the destination in second travel mode in which the vehicle travels with the engine off and enabling more effective use the second travel mode. In this vehicle, a electric power travel mode travelable distance calculation section calculates the travelable distance based on the average traveling consumed current value inputted from average traveling consumed current value calculation section and the battery capacity SOC inputted from a battery capacity calculation section, and outputs the result to a display section. A fuel travelable distance calculation section calculates the remaining travelable distance based on the remaining fuel inputted from a remaining fuel amount measuring section and the fuel consumption inputted from a fuel consumption calculation section, and outputs the result to the display section.

Abstract: An electric vehicle comprises a first power source and a second power source. The first power source can be used to supply a substantially constant base power level and the second power source can be used to supply a variable power level such that a variable load demand can be filled by combining the base power level and the variable power level. The first source can be used to supply power to the second source when the second source is operating at a decreased charge or power level. The base power level can be varied based upon the remaining charge or power level contained within the second source. A number of control methods for operating the power supply of the electric vehicle are disclosed.

Abstract: A memory associated with an address circuit receiving an address signal to designate a location of the memory to be accessed. The address circuit includes an X-decoder and a Y-decoder associated to the memory, and a multiplexor receiving at least a portion of an address input and adapted to selectively distribute the above portion of the address input to the X-decoder and the Y-decoder. Specifically, the multiplexor receives at least one first bit of a portion of the address signal to be inputted to the X-decoder and at least one second bit of the remaining portion of the address signal to be iputted to the Y-decoder. In a first condition, the multiplexor operates to supply the first bit and the second bit of the address input to the X-decoder and the Y-decoder, respectively. In a second condition, the multiplexor operates to supply the first bit and the second bit of the address input to the Y-decoder and the X-decoder, respectively.