Vehicle parking control device

• US 10,363,832 B2
• Filed: 03/02/2016
• Issued: 07/30/2019
• Est. Priority Date: 03/06/2015
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Nakagawa, Tomoaki
• Primary Examiner(s): Shudy, Angelina
• Application Number:
  US15/058,638
• Publication Number:
  US 20160257222A1
• Time in Patent Office: 1,245 Days
• Field of Search: 701 22
• CPC Class Codes: B60L 15/2009 for braking
• CPC Class Codes: B60L 15/2063 for creeping
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/642 Slope of road
• CPC Class Codes: B60L 2250/26 by pedal actuation
• CPC Class Codes: B60L 2260/22 Standstill, e.g. zero speed
• CPC Class Codes: B60L 2260/32 Auto pilot mode
• 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 53/38 specially adapted for charging by inductive energy transfer
• 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 90/12 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

Abstract

At a time that a parking operation is performed, a vehicle parking control device detects that a power receiving pad of an electric vehicle lies within a characteristics modifying range. Furthermore, the vehicle parking control device detects that other predetermined conditions are satisfied. In the case that the power receiving pad is positioned inside of the characteristics modifying range, and if all of the predetermined conditions have been satisfied, an acceleration-OFF-state movement characteristic of the vehicle, for example, a creep torque characteristic or a brake hydraulic pressure characteristic, is switched to an appropriate characteristic from a characteristic thereof at normal times.

Claims

1. A vehicle parking control device comprising:

a vehicle electronic control unit for controlling a vehicle, the vehicle electronic control unit being configured to;

specify a target position as a target at a time when the vehicle is stopped, the target position being an installation position of a power supplying pad for electric power supply by way of magnetism;

set a predetermined range that includes the target position, wherein the predetermined range is a range that is greater than a charging capable range within which a power supplying pad and a power receiving pad are capable of being magnetically coupled;

determine whether or not a reference position of the vehicle is positioned inside of the predetermined range, the reference position being a mounted position of the power receiving pad;

estimate an inclination state in a longitudinal direction of the vehicle;

estimate a state of charge of a battery; and

switch between creep torque characteristics of the vehicle, in response to determining that a predetermined condition that the reference position of the vehicle is positioned inside of the predetermined range and an estimated state of charge of the battery is less than a predetermined value is satisfied,

wherein the creep torque characteristics are switched so as to increase a creep torque in response to an estimated vehicular inclination state of an upward slope and to decrease the creep torque in response to the estimated vehicular inclination state of a flat or downward slope.

2. The vehicle parking control device according to claim 1, wherein the vehicle electronic control unit is further configured to determine a vehicle speed;

and

wherein, while the vehicle electronic control unit determines that the reference position of the vehicle is positioned inside of the predetermined range, the predetermined condition is that the vehicle electronic control unit detects that the vehicle speed has become zero.

3. The vehicle parking control device according to claim 2, wherein if the predetermined condition is not satisfied, the vehicle electronic control unit is further configured to prohibit the creep torque characteristics from being switched.

4. The vehicle parking control device according to claim 1, further comprising a display device configured to display the predetermined range and the charging capable range.

5. The vehicle parking control device according to claim 4, wherein if the predetermined condition is not satisfied, the vehicle electronic control unit is further configured to prohibit the creep torque characteristics from being switched.

6. The vehicle parking control device according to claim 1, wherein if the predetermined condition is not satisfied, the vehicle electronic control unit is further configured to prohibit the creep torque characteristics from being switched.

7. A vehicle parking control device comprising:

a vehicle electronic control unit for controlling a vehicle, the vehicle electronic control unit being configured to;

specify a target position as a target at a time when a vehicle is stopped, the target position being an installation position of a power supplying pad for electric power supply by way of magnetism;

set a predetermined range that includes the target position, wherein the predetermined range is a range that is greater than a charging capable range within which a power supplying pad and a power receiving pad are capable of being magnetically coupled;

determine whether or not a reference position of the vehicle is positioned inside of the predetermined range, the reference position being a mounted position of the power receiving pad;

estimate an inclination state in a longitudinal direction of the vehicle;

store a brake hydraulic pressure characteristic; and

modify the brake hydraulic pressure characteristic when the reference position of the vehicle is positioned inside of the predetermined range,

wherein a brake hydraulic pressure characteristic is modified so that a rate of rise of the brake hydraulic pressure decreases in response to an estimated vehicular inclination state of an upward slope and increases in response to estimated vehicular inclination state of a flat or downward slope.