SHIFT-LOCK APPARATUS FOR VEHICLE

• US 20130332019A1
• Filed: 03/03/2011
• Published: 12/12/2013
• Est. Priority Date: 03/03/2011
• Status: Abandoned Application

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Masuda, Tomokazu, Goto, Yoshihiko, Kosugi, Toshihiko, Tsuruta, Hiroshi
• Application Number:
  US13/985,773
• Publication Number:
  US 20130332019A1
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60L 3/0092 with use of redundant elements for safety purposes
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: F16H 2061/223 Electrical gear shift lock, e.g. locking of lever in park or neutral position by electric means if brake is not applied; Key interlock, i.e. locking the key if lever is not in park position
• CPC Class Codes: F16H 59/54 dependent on signals from the brakes, e.g. parking brakes
• CPC Class Codes: F16H 61/22 Locking of the control input devices constructional features of locking or disabling mechanisms F16H63/34
• CPC Class Codes: F16H 63/3416 Parking lock mechanisms or brakes in the transmission

Abstract

A PHV-ECU includes a power supply node, a switch and a CPU. A voltage is applied to the power supply node in accordance with a signal rendered active. When determining based on a connection state signal that a charging cable is unconnected or abnormal, the CPU turns on the switch. A shift-lock ECU includes output ports and a switch. A shift-lock solenoid of a lock release mechanism is connected between the output ports. When a brake signal is rendered active, the switch is turned on.

Claims

1. A shift-lock apparatus for a vehicle including a shift selecting mechanism for selecting one of a plurality of shift positions including a parking position, said vehicle being configured such that a vehicle-mounted power storage device can be charged through a charging cable by a power supply external to the vehicle, the shift-lock apparatus comprising:

an interlock device for prohibiting a position change from said parking position in said shift selecting mechanism; and

a control unit that outputs a command for permitting said position change to said interlock device when said vehicle is started and a brake pedal of said vehicle is operated and connection between said charging cable and said vehicle is undetected, wherein

said vehicle can operate in a running mode or in a charging mode,

an operation mode is switched to said charging mode when charging of said power storage device by said power supply is requested, and said operation mode is switched to said running mode when running of said vehicle is requested,

when said operation mode is said charging mode, said operation mode is maintained in said charging mode until a power supply of said vehicle is turned off or a CPU (216, 216A) of said control unit is reset, and

said control unit stops output of said command to said interlock device when said operation mode is said charging mode.

3. The shift-lock apparatus for a vehicle according to claim 1, wherein

when determining that a connection state between said charging cable and said vehicle is abnormal, said control unit outputs an alarm for notifying a user that said connection state is abnormal, and

said control unit outputs said command to said interlock device when said vehicle is started and said brake pedal is operated in a case where it is determined that said connection state is abnormal.

4. The shift-lock apparatus for a vehicle according to claim 3, wherein

said interlock device includes:

a lock mechanism for blocking movement of a shift lever from said parking position; and

a lock release mechanism for releasing, by receiving current supply, blockage of movement of said shift lever by said lock mechanism, and

said control unit supplies a current to said lock release mechanism when said vehicle is started and said brake pedal is operated and connection between said charging cable and said vehicle is undetected.

5. The shift-lock apparatus for a vehicle according to claim 4, wherein

said control unit includes:

a first electronic control device that receives a first state signal indicating whether said operation mode is said charging mode or not and a second state signal indicating whether said charging cable has been connected to said vehicle or not; and

a second electronic control device that receives a third state signal indicating whether said brake pedal has been operated or not,

said first electronic control device supplies the current to said second electronic control device when, during startup of said vehicle, said first state signal indicates that said operation mode is not said charging mode and said second state signal indicates that said charging cable and said vehicle are not connected, and

said second electronic control device supplies the current to said lock release mechanism when said second electronic control device receives the current supply from said first electronic control device and said third state signal indicates that said brake pedal has been operated.

6. The shift-lock apparatus for a vehicle according to claim 4, wherein

said control unit includes:

a first electronic control device that receives a first state signal indicating whether said operation mode is said charging mode or not, a second state signal indicating whether said charging cable has been connected to said vehicle or not, and a third state signal indicating whether said brake pedal has been operated or not; and

a second electronic control device that receives a signal from said first electronic control device,

said first electronic control device renders said signal outputted to said second electronic control device active when said first state signal indicates that said operation mode is not said charging mode, and said second state signal indicates that said charging cable and said vehicle are not connected, and said third state signal indicates that said brake pedal has been operated, and

said second electronic control device supplies the current to said lock release mechanism when said signal received from said first electronic control device is rendered active during startup of said vehicle.

7. The shift-lock apparatus for a vehicle according to claim 4, wherein

said control unit includes an electronic control device that receives a first state signal indicating whether said operation mode is said charging mode or not, a second state signal indicating whether said charging cable has been connected to said vehicle or not, and a third state signal indicating whether said brake pedal has been operated or not, and

said electronic control device supplies the current to said lock release mechanism when, during startup of said vehicle, said first state signal indicates that said operation mode is not said charging mode, and said second state signal indicates that said charging cable and said vehicle are not connected, and said third state signal indicates that said brake pedal has been operated.

8. The shift-lock apparatus for a vehicle according to claim 1, further comprising:

an operation unit for mechanically releasing prohibition of said position change by said interlock device in accordance with user'"'"'s operation.

2. (canceled)