Patent classifications
B60L3/10
VEHICLE AND VEHICLE CONTROL METHOD
An ECU of a vehicle executes a regeneration process to control an electric motor so as to generate regenerative torque during deceleration caused by an accelerator OFF. The ECU executes a torque gradual decrease process to decrease the regenerative torque in a wheel slip detection state more gradually at a time when a brake pedal is depressed after a start of the deceleration and ABS control is not activated than a time when the brake pedal is not depressed after the start of the deceleration. The ECU executes a hydraulic pressure increase process to increase the upstream hydraulic pressure such that, when the ABS control is activated while the brake pedal is depressed after the start of the deceleration, the upstream hydraulic pressure has a value necessary for generating a braking torque having a magnitude according to the regenerative torque generated at a start of the ABS control.
Method of controlling posture of vehicle
A method of controlling posture of a vehicle is provided to determine a minute tendency of understeer or oversteer of the vehicle and to control the posture of the vehicle when recognizing the minute tendency of the understeer or oversteer while driving the vehicle straight. The includes determining whether torque is applied to drive wheels while driving the vehicle and acquiring equivalent inertia information of a drive system in real time based on drive system operation information in response to determining that the torque is being applied to the drive wheels. The understeer or oversteer of the vehicle is determined from the equivalent inertia information obtained in real-time.
Energy storage system for electric vehicles
- Brian J. Maskew ,
- Scott K. Bennett ,
- Leonard F. Baxter, II ,
- Daniel J. Youngs ,
- Kurt Biehl ,
- Edward Bass ,
- Eric D. Schneider ,
- Felice E. Bailey ,
- Steven T. Reyburn ,
- Dean M. Ford ,
- Clyde H. Johnson ,
- Bruce E. Miller ,
- Richard Bletsis ,
- Derek A. Delrymple ,
- Markus Naegeli ,
- Jerry Wendling ,
- Timothy A. Gasaway ,
- Russell B. Hopkins ,
- Brian C. Morrow ,
- Robert Lawrence
An energy storage system comprising at least one energy storage module adapted to supply electrical energy to a hybrid vehicle. The energy storage module comprises an enclosure, at least one battery array located within the enclosure, and an energy storage controller module located within the enclosure and electrically connected to the battery array. The energy storage module further comprises a compliant tipped thermistor which may be installed within a flexible clip. The thermistor is positioned to monitor the temperature of one or more of the batteries within the energy storage system.
Method for operating a rotational speed sensor in a vehicle, and sensor assembly
Disclosed is a method for operating a rotational speed sensor comprising a sensor element in a vehicle, wherein the sensor element interacts with a magnet wheel on a wheel of the vehicle and an effective parameter generated by the interaction of the magnet wheel with the sensor element is evaluated in the form of a measurand in an evaluation module and, depending on the measurand, an output variable characterizing the rotational speed of the wheel is output, wherein the sensor element is supplied via the evaluation module with a sensor voltage influencing the measurand. A sensor assembly is also disclosed.
CONTROL SYSTEM AND METHOD FOR CONTROLLING ELECTRICAL POWER CONSUMPTION BY TRACTION MOTOR CAUSED BY WHEEL SLIP
A control system for controlling electrical power consumption from energy storage means by a traction motor of a vehicle caused by a wheel slip event includes: one or more electronic controllers configured to: receive a torque request for the traction motor; determine a current known prevailing speed value of the traction motor; determine a maximum allowable increase in speed of the traction motor of to occur during a latency period associated with the prevailing speed value of the current known speed of the traction motor; determine an electrical power consumption limit in dependence on the torque request, the current known prevailing speed value of the traction motor of the vehicle and the maximum allowable increase in speed of the traction motor; and control torque provision of the traction motor in dependence on the torque request and the electrical power consumption limit.
Electrified vehicle wheel speed control using heave when traversing deformable terrain
An electrified vehicle, system, and method include an electric machine, a traction battery coupled to the electric machine, and a controller programmed to control wheel slip to provide high wheel slip to traverse deformable terrain, such as sand or loose soil, and lower wheel slip to avoid excessive soil removal beneath the wheels after detecting a vertical acceleration or heave event, such as after landing when driving over a jump or bump. When vehicle vertical acceleration exceeds a first threshold, and a ratio of a wheel angular acceleration to vehicle longitudinal acceleration exceeds a second threshold, the electric machine is controlled to limit wheel slip to a lower value that provides sufficient tractive force to maintain some forward motion. Otherwise, the electric machine is controlled to limit wheel slip to a higher value to accommodate higher vehicle speeds over the deformable terrain.
SYSTEMS AND METHODS FOR SPEED CONTROL OF WHEELS OF A VEHICLE
Systems and methods are provided herein for controlling the speed on each wheel of a vehicle, possibly operating a vehicle in a speed control mode. In response to receiving input to engage speed control mode and receiving an accelerator pedal input, the system determines a target wheel speed based on the accelerator pedal input, monitors wheel speed of each of a plurality of wheels and determines, for each monitored wheel, a difference based on the monitored wheel speed and the target wheel speed. A torque is provided to each of the plurality of wheels based on the respective difference to achieve the target wheel speed.
Systems, methods, and apparatus for tracking location of an inspection robot
Systems, methods, and apparatus for tracking location of an inspection robot are disclosed. An example apparatus for tracking inspection data may include an inspection chassis having a plurality of inspection sensors configured to interrogate an inspection surface, a first drive module and a second drive module, both coupled to the inspection chassis. The first and second drive module may each include a passive encoder wheel and a non-contact sensor positioned in proximity to the passive encoder wheel, wherein the non-contact sensor provides a movement value corresponding to the first passive encoder wheel. An inspection position circuit may determine a relative position of the inspection chassis in response to the movement values from the first and second drive modules.
METHOD AND APPARATUS FOR CONTROLLING TORQUE VECTORING OF xEV
A method for controlling torque vectoring of an xEV includes detecting vehicle speed information using speed sensors mounted in the xEV, and estimating a vehicle speed of the xEV in driving based on the detected vehicle speed information, setting a state of the xEV based on the estimated vehicle speed, determining whether there is an intervention request based on the set state of the xEV, detecting a steering angle of the xEV when the intervention request is rejected, and when the detected steering angle of the xEV is within a predetermined reference angle range, determining the xEV as being in a first slip state in which the xEV slips in a longitudinal direction, and resetting the vehicle speed of the xEV through output of a torque vectoring (TV) motor mounted in the xEV.
Vehicle and coasting feedback control method for the same
The present disclosure discloses a vehicle and a coasting feedback control method for the same. The coasting feedback control method includes the following steps: detecting the current speed of a vehicle, the depth of a braking pedal of the vehicle, and the depth of an accelerator pedal; and when the current speed of the vehicle is greater than a preset speed, both the depth of the braking pedal and the depth of the accelerator pedal are 0, and the current gear of the vehicle is gear D, when the vehicle is not in a cruise control mode and an anti-lock braking system of the vehicle is in a non-working state, controlling the vehicle to enter a coasting feedback control mode, where when the vehicle is in the coasting feedback control mode, a coasting feedback torque of a first motor generator and a coasting feedback torque of a second motor generator are distributed according to a selected coasting feedback torque curve of the vehicle.