摘要:
A vehicle comprises a drive having at least an electrical motor, whereby the drive comprises at least two operational modes and an operation parameter of the drive is restricted to a first target area in a first operational mode and restricted to a second target area in a second operational mode, whereby the drive is only operable in the second operational mode if the vehicle registration plate (14) is connected to the vehicle.
摘要:
A DC-link decoupling circuit is provided in combination with two inverters which are connected in parallel to a common DC power supply line and each of which inverter driving one different traction motor, switch means being provided for each of said two inverters, for separating the corresponding inverter from said power supply line in case of failure. The said DC-link decoupling circuit is provided with resonance oscillation attenuating/damping means in the form of an RL filter (resistor-inductor filter). The invention relates also to an electric locomotive comprising at least two electric motors, each motor being controlled by one of two inverters, each of which inverters is powered by a common power supply line, switch means being provided for each of said two inverters, for separating the corresponding inverter from said power supply line in case of failure. DC-link decoupling means are provided for decoupling the resonance condition of inverters, which means consist of an RL filter having a damping inductor and a damping resistor in parallel.
摘要:
A children's ride-on vehicle(10) having an electronic speed controller(70) adapted to regulate at least one of the timing and rate of application of a selected rotational input. The vehicle(10) includes a body(12) with a seat(16), a steering mechanism(38) positioned for operation by a child to steer at least one of the vehicle's wheels(18), and a drive assembly(26) with an actuator(56) positioned for actuation by a child sitting on the seat(16) to cause the driven rotation of at least one of the vehicle's wheels(18) by a battery-powered motor assembly(42). In some embodiments, the drive assembly(26) includes one or more user input devices(54) that enable a child sitting on the seat(16) to select at least one of the relative speed and direction of the vehicle(10). The drive assembly(26) also includes an electronic speed controller(70) that controls electronically the transmission of a selected rotational input to the vehicle's driven wheel assembly(26).
摘要:
Das Verfahren zur Begrenzung der Maximalbeschleunigung eines mit einem Elektroantrieb versehenen Fahrzeugs, insbesondere eines Stadtbusses, als Funktion des Fahrzeuggewichts sowie der Steigungsverhältnisse der befahrenen Straße besteht darin, daß das vom Elektroantrieb abgegebene Drehmoment mittels eines Reglers derart eingestellt wird, daß einerseits das vollbeladene Fahrzeug eine vorgegebene Anfahrsteigfähigkeit aufweist und andererseits eine vorgegebene Maximalbeschleunigung des weitgehend leeren Fahrzeugs in der Ebene oder bei Bergabfahrt nicht überschritten wird.
摘要:
When a traveling drive system is activated at a time t2 in response to a turning of an ignition switch to an ON state at a time t1, a request of P/N (a park lock release inhibit) from an electrically operated motor controller vanishes. Therefore, originally, according to an execution of a park lock release, the vehicle is started in response to a holding of a D position of a shifter. However, in a case where a park lock release inhibit state occurs at a time immediately before a time t2 and the shifter is at the D position at time t2, a present shift inhibit flag takes over the park lock inhibit state at the time immediately before t2 until a time t3 at which the shifter returns to a home (H) position so that the above-described start of the vehicle is prevented. Since, after time t3, the present shift inhibit flag is in a park lock release allowance state, the shifter is operated to the D position at a time t4 and the park lock release is carried out so that the vehicle is travelable. In this way, without addition of another component, the vehicle is, at a low cost, not started even though a re-activation of the traveling drive system, when the shifter is shifted to the position other than the reference position occurs.
摘要:
A vehicle comprises a drive having at least an electrical motor, whereby the drive comprises at least two operational modes and an operation parameter of the drive is restricted to a first target area in a first operational mode and restricted to a second target area in a second operational mode, whereby the drive is only operable in the second operational mode if the vehicle registration plate (14) is connected to the vehicle.
摘要:
A controller for a motorised vehicle having at least a left wheel and a right wheel is provided, where the left wheel and the right wheel are driven independently by a motor arrangement. The controller is arranged to receive control signals from a user input device of the motorised vehicle, the control signals determining a requested left: wheel velocity and a requested right wheel velocity. A requested speed of the motorised vehicle is given by a mean of the requested left wheel velocity and the requested right wheel velocity and a requested spin of the motorised vehicle is given by a mean difference of the requested left wheel velocity and the requested right wheel velocity. A scaling unit determines a scaling factor in dependence on the requested speed and the requested spin and scales both the requested speed and the requested spin by the scaling factor to generate a target speed and a target spin. The controller is configured to convert the target speed and the target spin into a target left wheel velocity and a target right wheel velocity and the motor arrangement is responsive to the controller to drive the left wheel at the target left wheel velocity and to drive the right wheel at the target right wheel velocity.
摘要:
An electric motor control unit for controlling the operation of an electric motor. The unit comprises: an electric motor controller comprising a processor having at least one input and at least one output, wherein an output of the processor is coupled to a power provider for controlling power to an electric motor; a tilt accelerometer system comprising a tilt accelerometer for determining a measure of the tilt of the electric motor unit relative to a reference orientation, wherein the tilt accelerometer system comprises an output for providing a signal based on the determined measure of the tilt; wherein the output of the tilt accelerometer system is coupled to an input of the processor of the electric motor controller; wherein the power provider comprises a power output for controlling the operation of an electric motor based on the output of the tilt accelerometer system.