TORQUE CONTROL APPARATUS AND CONTACTLESS CHARGING SYSTEM

• US 20140039728A1
• Filed: 02/08/2012
• Published: 02/06/2014
• Est. Priority Date: 04/21/2011
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Imazu, Tomoya, Tanaka, Hiroshi
• Granted Patent: US 9,623,767 B2
• Time in Patent Office: Days
• US Class Current: 701/2
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 15/40 Adaptation of control equipment on vehicle for remote actuation from a stationary place devices along the route for controlling devices on rail vehicles B61L3/00; central rail-traffic control systems B61L27/00
• CPC Class Codes: B60L 2210/10 DC to DC converters
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/32 Driving direction
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2250/26 by pedal actuation
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/30 Constructional details of charging stations
• CPC Class Codes: B60L 53/35 Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/37 using optical position determination, e.g. using cameras
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60W 30/06 Automatic manoeuvring for parking
• CPC Class Codes: H01M 10/46 : Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H01M 2220/20 : Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/10 : using inductive coupling
• CPC Class Codes: H02J 50/15 : using ultrasonic waves
• CPC Class Codes: H02J 50/20 : using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/80 : involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 : involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/10 : Technologies relating to charging of electric vehicles
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A torque control apparatus is provided which facilitates a positioning between a position of the vehicle and a predetermined parking position when the vehicle is parked. The torque control apparatus according to the present invention includes: accelerator opening angle detecting means for detecting an accelerator opening angle; torque setting means for setting a torque to drive the vehicle (100) on a basis of an accelerator opening angle detected by the accelerator opening angle detecting means; and torque control means for correcting the torque set by the torque setting means in accordance with the relative position between the predetermined parking position and the position of vehicle (100), and driving the vehicle (100) according to the corrected torque.

Claims

1-8. -8. (canceled)

9. A torque control apparatus comprising:

accelerator opening angle detecting means for detecting an accelerator opening angle;

torque setting means for setting a torque driving a vehicle on a basis of the accelerator opening angle detected by the accelerator opening angle detecting means; and

torque control means for correcting the torque set by the torque setting means such that the driving torque of the vehicle with respect to a depression quantity of the accelerator becomes relatively small when a position of the vehicle approaches a predetermined parking position and for driving the vehicle according to the corrected torque.

10. The torque control apparatus as claimed in claim 9,

which further comprises a power receiving coil configured to receive an electric power from a power transmitting coil in a contactless manner by means of at least a magnetic coupling and the predetermined parking position corresponds to a position of the power transmitting coil and the position of the vehicle corresponds to the position of the power receiving coil.

11. The torque control apparatus as claimed in claim 9, wherein the torque control means corrects the torque set by the torque setting means in a case where a distance between the predetermined parking position and the position of the vehicle becomes shorter than a predetermined distance.

12. The torque control apparatus as claimed in claim 9, wherein the torque control means corrects the torque set by the torque setting means to become smaller as a distance between the predetermined parking position and the position of the vehicle with respect to a forwarding direction of the vehicle at a time of the parking of the vehicle becomes shorter than a predetermined distance.

13. The torque control apparatus as claimed in claim 9, wherein the torque control means corrects the torque set by the torque setting means to be made smaller as a distance between the predetermined parking position and the position of the vehicle becomes shorter than a predetermined distance.

14. The torque control apparatus as claimed in claim 9, wherein the torque control means corrects the torque set by the torque setting means to be made smaller along with a passage time from a time point at which the distance between the predetermined parking position and the position of the vehicle becomes shorter than a predetermined distance.

15. The torque control apparatus as claimed in claim 9, which further comprises position detecting means for detecting a relative position between the predetermined parking position and the position of the vehicle.

16. A contactless charging system which performs a power supply in a contactless manner by means of at least a magnetic coupling between a power receiving coil installed in a vehicle and a power transmitting coil installed in a charging apparatus at an earth side,

the charging apparatus comprising:

a charger configured to supply an electric power to the power transmitting coil;

position detecting means for detecting a relative position between the power transmitting coil and the power receiving coil; and

transmitting means for transmitting a signal including the position detected by the position detecting means, and

the vehicle comprising;

a battery charged by the electric power received by the power receiving coil;

accelerator opening angle detecting means for detecting the accelerator opening angle detected by the accelerator opening angle detecting means;

torque setting means for setting the torque driving the vehicle;

receiving means for receiving the signal transmitted from the transmitting means; and

torque control means for detecting a relative position between a position of the power transmitting coil and the position of the power receiving coil from the signal received by the receiving means, for correcting the torque set by the torque setting means such that the driving torque of the vehicle with respect to a depression quantity of the accelerator becomes relatively small when a position of the vehicle approaches a predetermined parking position, and for driving the vehicle according to the corrected torque.