BATTERY CHARGER HAVING NON-CONTACT ELECTRICAL SWITCH
The handle of a charge coupler includes a mechanical latch that securely mechanically locks the handle to the vehicle passively when the handle is manually attached to the vehicle by a human operator to create an electrical connection between the vehicle and the charger. The handle also has an actuator movable by the operator from a deactivated state to a first and a second position activated state. The mechanical latch operates independently of the state of the actuator when the handle is being manually attached but being mechanically released by the actuator when it is moved to its second activated state. A non-contact electrical switch means associated with the actuator breaks the electrical connection when the actuator is moved to the first position activated state before releasing the mechanical latch at said second activated position.
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This invention is directed to a battery charger for a vehicle, more particularly, a charge coupler includes a handle in electrical communication with the charger and provisions in the handle electrically manage an electrical connection state with the vehicle independent from a mechanical connection state with the vehicle.
BACKGROUND OF INVENTIONIt is known, referring to
Hybrid electric vehicles and electric vehicles are gaining in popularity with consumers in the marketplace. And because these vehicles may use little or no hydrocarbon fuel, they rely more heavily on the energy provided by the vehicle's battery to power a vehicle along a road. As an energy charge state of the battery of the electric vehicle decreases, the battery may need to be electrically recharged back to a fully charged energy state. As electric vehicles become more prominent, the need for battery charging systems to recharge batteries for these vehicles increases. It is desirable to provide a battery charging system that eliminates the shortcomings of the prior art as shown in
Accordingly, what is needed is a reliable battery charging system that provides increased safety and convenience for a human operator of the battery charging system.
SUMMARY OF THE INVENTIONAccording to one aspect of the invention, a charge coupler for an electric vehicle both mechanically and electrically couples and decouples a charger to the vehicle. The charge coupler includes a handle having a mechanical latch. The mechanical latch securely locks the handle to the vehicle passively when the handle is manually attached to the vehicle by a human operator to create an electrical connection between the vehicle and the charger. The handle also includes an actuator moveable by the operator from a deactivated state to a first and a second position activated state. The mechanical latch operates independently of the state of the actuator when the handle is being manually attached but being mechanically released by the actuator when it is moved to its second position activated state. A non-contact electrical switch means is associated with the actuator to break the electrical connection when the actuator is moved to the first position activated state before releasing the mechanical latch at the second position activated position. A biasing means automatically moves the actuator back to its deactivated state when released by the operator.
In another aspect of the invention, a charging system for an electrical vehicle includes the handle having the mechanical latch that operates independently of the state of the actuator when the handle is being manually attached but is mechanically released by the actuator when it is moved to its second position activated state. The charging system also includes the non-contact electrical switch means associated with the actuator to break the electrical connection when the actuator is moved to the first position activated state before releasing the mechanical latch at the second position activated position.
In a further aspect of the invention, the non-contact electrical switch means is a hall-effect sensor and the activator is a dual-mode push button.
In yet another aspect of the invention, a method of mechanically and electrically coupling and decoupling a charger to a vehicle is presented.
According to an alternate embodiment of the invention, the non-contact electrical switch means is a reed switch and the activator is a dual-mode push button.
This invention will be further described with reference to the accompanying drawings in which:
A drivetrain of a vehicle is a group of components in the vehicle that generate power and deliver this power through the wheels of the vehicle to a road surface. A hybrid electric vehicle and an electrical vehicle each use a battery to power the drivetrain of their respective vehicles. A hybrid electrical vehicle uses a hydrocarbon fuel engine in combination with a battery disposed on the vehicle to power the drivetrain of a vehicle. An electric vehicle powers the drivetrain solely by using energy from a battery. The battery of the hybrid electric vehicle and the electric vehicle may include a plurality of batteries connected in series or parallel connection to form a single battery. As the vehicle is driven, or otherwise used by a human operator of the vehicle such as when powering the radio or windshield wipers apart from powering the drivetrain, the electrical charge on the battery may decrease such that the battery needs to be electrically recharged back to a fully charged electrical state. Recharging a battery may be accomplished using an electrical charging system that releasably connects with the vehicle. The charging assembly supplies the electrical charge to provide and fill the battery with electrical charge in a similar manner to a fuel pump that pumps hydrocarbon fuel into a fuel tank to supply an engine that operates using hydrocarbon fuel. A portion of the charging assembly may be connected with the electric vehicle and another portion of the assembly may be connected to an electrical power source to allow the charging assembly to electrically charge the battery of the vehicle.
According to
Handle 18, as illustrated in
Referring to
Charging station 16 includes a housing 29. Housing 29 may be constructed of solid material such as metal or plastic. Electrical circuits that form the at least one power signals carried on wire conductors 28 in cable 20 are disposed in housing 29 and receive the voltage and/or the current from a power source (not shown). Station 16 receives power from the power source into housing 29 through an electrical cord 30. A plug end 32 of cord 30 is received by a 120 volt alternating current (AC) receptacle outlet. This voltage level is typical of what may be found when connected to an AC electrical outlet in a garage of a vehicle owner in the United States. Alternately, the charging station may have a power source with 240 volts of alternating current. Using a charging station that is powered by a power source of 240 volts AC provides more current or voltage load to charge a battery that results in charging, or recharging a battery in a less amount of time than system 10 that uses a power source of 120 volts AC. Alternately, a battery charging station may be provided that requires connection to a power source that is a voltage level other than 120 or 240 volts AC including power sources that operate on direct current (DC).
Handle 18 includes a body 34 formed from a left portion 36 and a right portion 38. Portions 36, 38 are mateable together, and when assembled together, define a space, or passage 40 through handle 18. Portions are 36, 38 are formed of a molded material such as plastic. Preferably, handle 18 is formed of a flame retardant material that may be approved and listed by Underwriters Laboratory (UL). Alternately, the body of the charge coupling handle may be integrally formed. Portions 36, 38 may be fastened together with fasteners such as screws, rivets, an adhesive, and the like. In another embodiment, seven screws attach the left and the right portion together.
Referring to
Handle 18 mechanically and electrically couples and decouples charging station 16 with vehicle 14. Handle 18 includes a non-contact electrical switch means 48 and a mechanical latch 54 that are operatively associated with an activator 50. Switch means 48 is disposed on a printed circuit board (PCB) 81 in handle 18 and includes a wire conductor that serves as an electrical output for switch means 48, or an electrical connection 52 that communicates with handle connector 42 to vehicle 14 when handle connector 42 is connected to vehicle inlet connector 22. Mechanical latch 54 securely mechanically locks handle 18 to vehicle 14 passively when handle 18 is manually attached to vehicle 14 by a human operator between vehicle 14 and charger 16. Activator 50 in combination with switch means 48 is adapted to alter the resistance state of electrical connection 52 between a high and a low resistance state. Preferably, the high resistance state is about 480 ohms and the low resistance state is about 150 ohms. Electrical connection 52 is provided a 5 VDC supply voltage through vehicle 14 when handle connector 42 of handle 18 is connected to vehicle inlet connector 22. Alternately, a different level of supply voltage may be utilized. Actuator 50 is movable by the operator from a deactivated state 73 to a first and a second position activated state 74, 76 and mechanical latch 54 operates independently of the state of actuator 50 when handle 18 is being manually attached to inlet connector 22 but being mechanically released from inlet connector 22 by actuator 50 when it is moved to its second activated state 76. Switch means 48 is associated with actuator 50 to break electrical connection 52, or put electrical connection 52 in a high resistance state, when actuator 50 is moved to first position activated state 74 before releasing mechanical latch 54 at second activated position 76. Electrical connection 52 is still physically electrically connected to inlet connector 22, but electrical connection is broken by being altered to a high resistance state. In this manner, switch means 48 combines with activator 50 to affect a resistance state of electrical connection 52 to vehicle 14 when handle 18 is connected to vehicle 14, and vehicle 14 responds back to system 10 so that system 10 electrically manages, or controls the flow of electrical current through wire conductors 28 carrying power signals in handle 18 and into vehicle 14 to allow electrical charging of battery 14 apart from independently mechanically managing a connection state of handle connector 42 in communication to vehicle inlet connector 22. Unplugging of electrical connection 52 from vehicle inlet connection 22 may not easily occur until electrical connection 52 is electrically broken, or in a high resistance state as seen by controller 89 of vehicle 14.
Referring to
Push button 56 includes a spring 62 to bias head portion 58 and an extending portion 64 that depends axially away from head portion 58 adjacent spring 62. Push button 56 is constructed of a rigid, dielectric material such as plastic. Extending portion 64 includes a magnet 66 that is secured in extending portion 64. Preferably, magnet 66 is cylindrical. Referring to
The deactivation position, or rest position of push button 56, is best illustrated in
Mechanical latch 54 of handle 18 includes a hook portion 70 and an engaging portion 72 opposite hook portion 70 that engages with push button 56. Latch 54 may be made of any solid material, such as metal or wood. Preferably, latch 54 is made of a dielectric material that is a plastic material. Latch 54 is disposed in passage 40 in handle 18 being secured to handle 18 with a fastener 69. Fastener 69 may be a screw or rivet, and the like. Latch 54 is also disposed in a rest position to engage a boss 77 in handle 18. Latch 54 is in a neutral, or rest position when push button 56 does not engage latch 54 as best illustrated in
Referring to
Lamp 75 is useful to provide light that emits through passage 40 and out from an aperture (not shown) in connector means 42 in handle 18 to illuminate a dark environment to locate vehicle inlet connector 22. Lamp 75 is a light emitting diode 83 (LED1). Alternately, lamp 75 may be any element or device that emits light such as an incandescent bulb. A light pipe 84 focuses and transmits the light provided by diode 83 (LED1) thru passage 40 and out aperture in handle 18. Light pipe 84 may be secured in passage 40 by any suitable fastener, such as adhesive. Alternately, the lamp may not be employed in the handle.
A thermal cutout device 85 (F1) is disposed on PCB 81 in handle 18 and is suitable to sense if an over-temperature condition exists at least in handle 18 which encompasses an environment about thermal device 85. This environment may further extend out to include vehicle inlet connection 22 when charge couple handle 18 is connected with vehicle inlet connection 22. For example, an over-temperature condition may be experienced if a hot thermal failure develops in the handle when the handle is connected to vehicle inlet connector 22. If thermal device 85 (F1) is activated due to an over-temperature event, device 85 determines the output state of electrical connection 52 as shown in truth table 167 in
When handle connector 42 of handle 18 is not connected with vehicle inlet connector 22, charging of battery 12 of vehicle 14 will not occur. Referring to
Referring to
When handle 18 is mated to inlet connection 22 and head portion 58 is in rest position 71 and push button 54 is not depressed, electrical connection 52 is at a low resistance state looking into electrical connection 52 as seen by vehicle 14. Magnet 66 is overlying hall-effect sensor 80 supplying magnetic flux to hall-effect sensor 80 to ensure circuit 79 keeps electrical connection 52 in a low resistance state. When controller 89 of vehicle 14 senses the low resistance state of electrical connection 52, controller 89 communicates with charging system 10 to transmit at least one power signal on wire conductor 28 through handle 18 to charge battery 12 in vehicle 14.
When the operator desires to disconnect system 10 by uncoupling handle 18 from vehicle inlet connector 22, the operator depresses head portion 58 of push button 56 to second depress position 76 which is step 162 in method 150. This may occur, for example, when battery 14 has been completely electrically charged and has a full electrical charge. When battery 12 has a full electrical charge, system 10 is no longer needed. Second depress position 76 cannot be attained until dual-mode push button is induced, or moved initially through first depress position 74. The depression of head portion 58 to first depress position 74 is defined as a partial depress of head portion 58, as captured in step 160 of method 150. The depression of head portion 58 to second depress position 76 is defined as a complete depress of head portion 58. When head portion 58 is induced to first depress position 74, magnet 66 travels away from hall-effect sensor 80. Magnetic flux no longer influences hall-effect sensor 80 and the performance of circuit 79 operates to change the electrical state of electrical connection 52 to a high resistance state. Controller 89 in vehicle 14 senses the high resistance state of electrical connection 52 and configures system 12 to stop transmission of one or more power signals 28 through handle 18. When wire conductors 28 carrying power signals are not transmitted, battery 12 is not being electrically charged. In first depress position 74, latch 54 is still in the locked state and handle 18 is not releasable from vehicle inlet connection 22. When head portion 58 is depressed to second depress position 76, surface 78 of head portion 58 engages latch 54 to move latch 54 to a position that is outwardly away from shoulder 71 of vehicle inlet connector 22 so that hook portion 70 of latch 78 is clear of shoulder 71. When latch 54 is clear of shoulder 71, handle connector 42 of handle 18 may be removeably uncoupled from vehicle inlet connection 22. Thus, the transmission of power signals on wire conductors 28, which is defined as a hot signal, is stopped before handle connector 42 of handle 18 is removeable from vehicle inlet connector 22 to prevent handle 18 from being removed while battery 12 is still being charged. This feature enhances the safety to the operator that uses charging system 10. If the battery continued to be electrically charged while the handle is also being disconnected from the vehicle inlet connection, undesired electrical arcing across the terminals of the handle connector and vehicle inlet connection may result which may degrade these connections. Arcing may degrade these connections by causing material of terminals in these connections to break away resulting in high impedance in the connection which lowers the effective electrical conductivity in the connection.
Referring to FIGS. 5 and 7A-7C, and turning our attention to the operation of circuit 79, switch means 48 includes hall-effect sensor 80 (U1) that has four modes of circuit operation when handle connector 42 is mated to vehicle inlet connector 22. A first operation state occurs when head portion 58 of push button 56 is in rest position 71, or not depressed and thermal device 85 (F1) does not sense an over-temperature condition in handle 18. A second operation state occurs when head portion 58 is depressed to first depress position 74 and thermal device 85 (F1) does not sense an over-temperature condition. A third operation state occurs when head portion 58 is depressed to second depress condition 76. A forth operation mode occurs when thermal device 85 (F1) senses an over-temperature condition in handle 18.
Referring to
As previously described herein, the first state of operation using hall-effect sensor 80 (U1) is where thermal device 85 (F1) does not sense an over-temperature condition and head portion 58 of push button 56 is in rest position 71. Referring to
Referring to
In a third state of operation of hall-effect sensor U1, head portion 58 is completely depressed, or depressed into second depress position 76. The high resistance state of electrical connection 52 is maintained as magnet 66 is even further removed from hall-effect sensor 80. In second depress position 76, head portion 58 engages latch 54. The cantilever action of the latch 54 causes hook portion 70 of latch 54 to move out and away from inlet connection 22 and allow handle connector 42 to be removed from inlet connection 22. As previously discussed herein, when push button 56 is depressed to at least first depress position 74, light emitting diode 83 (LED1) is activated. Diode 83 (LED1) also stays on if head portion 58 is disposed between first depress position 74 and second position 76 or if push button 56 is in second depress position 76.
Fourth Circuit Operation State—Hall-Effect SensorIn a fourth state of operation thermal device 85 (F1) senses on over-temperature condition in handle 18 and configures electrical connection 52 in a high resistive state. Thermal device 85 cuts out, or breaks when the temperature in handle exceeds 105 degrees Celsius. The other elements associated with switch means 48 and activator 50 are ‘don't care’ or irrelevant as illustrated by reference numeral 167 in
Referring to
The first state of operation uses reed switch 211 (SW1) where thermal device 285 (F1) does not sense an over-temperature condition. Referring again to
Thermal device 285 (F1) does not sense an over-temperature condition in the charge coupling handle and electrical connection 252 is in a high resistive state. Preferably, the high resistance state between electrical connection 252 and ground voltage potential may be a resistance of about 480 ohms. When the head portion of the dual-mode push button is depressed to first depress position, the magnet moves away from reed switch 211 so that the magnetic flux applied to reed switch 211 decreases. Reed switch 211 now switches to an open position allowing current to flow through resistors 213 (R1), 215 (R2). The voltage increases at the base of transistor 227 (Q1) sufficiently to turn transistor 227 (Q1) on. Turning 227 (Q1) on, allows current to flow through resistor 217 (R3) and diode 283 (LED1) to turn on diode 283 (LED1) and provide light emitting through the charge couple handle. Electrical connection 252 transitions to a high resistance state.
Third State of Operation—Reed SwitchIn a third state of operation, the dual-mode push button is depressed to a second depress position. In the second depress position, the dual-mode push button engages the latch similar to the embodiment of
A fourth state of operation, thermal device 285 (F1) does sense an over-temperature condition in the charge coupling handle. When device 285 (F1) senses an over-temperature condition, device 285 (F1) breaks, or cuts out. When device 285 (F1) cuts out, electrical connection 252 is configured to a high impedance state. Preferably, the high impedance state is a high resistance state between electrical connection 252 and ground voltage potential. The resistance in the high resistance state may be about 1 Megaohm.
If electrical circuit 279 is employed without using diode 283 (LED1), a wire conductor, typically, a 16 AWG sized wire, in the bundle of wire conductors received from the charging station to the charge couple handle may be eliminated that decreases the cost of manufacture of the charging system. When diode 283 (LED1) is not used a DC power line 247 received from the charging station to the printed circuit board is not needed. Electrical connection 252 is supplied power from the vehicle similar to the embodiment of
Circuits 79 and 279 are solid-state electrical circuits having non-contact electrical switches, respectively, where the non-contact electrical switches do not have moving mechanical parts or contact wear as does the mechanical switch in the prior art of
Alternately, what is described herein should not be limited, rather any charging system that includes electrical circuits, techniques, or methods that allow the electrical connection to be managed, or controlled independent from the unsecuring of the handle connector, preferably so the transmission of the power signals are stopped before the handle connector of the handle is releasable from the vehicle inlet connection is within the spirit and scope of the invention as described herein.
In another alternate embodiment, the bipolar devices in the hall-effect and reed circuits may include other types of electronic switch devices, such as FETS, MOSFETS, and the like.
Alternately, the resistance output states at the electrical connection may be voltage or current levels that establish different types of output states. Yet alternately, the logic levels may be edge-triggered output configurations that establish a difference between to operational output states. Still yet alternately, the electrical connection may be electrically manipulated in any possible way to establish a difference in an operational characteristic of the electrical connection.
Alternately, the activator may be a pull-lever mechanism, such as is similar to that found on a typical gasoline pump that allows displacement of the magnet away from the switch. Still yet alternately, any mechanism that allows displacement of the magnet away from the switch is covered by the spirit and scope of the invention.
Still yet alternately, the electrical output to the vehicle inlet connection may be supplied with voltage resident in the handle and supplied from the charging station.
Alternately, the vehicle inlet connection may also be included in the charging system. This ensures that a provision on the shoulder more easily communicates with the securing mechanism when the handle connector is connected to the vehicle inlet connection. Should the provision be different than that required by the securing mechanism undesired difficulty may arise connecting and unconnecting the handle connector where recharging the battery may not occur.
Alternately, the system may be used to supply power signals to supply electric charge to a battery such as a marine battery, truck battery, and the like.
Still yet alternately, other motorized vehicles in the transportation may use the charging system as described herein if the SAE J-1772 standard is adopted by non-automotive industries to switch AC power to the load. The SAE J-1772 standard is an automotive industry standard and an on-board vehicle charger is the electrical load.
Thus, a reliable charging system to charge a battery on an electric vehicle has been provided. The handle includes a mechanical latch that securely mechanically locks the handle to the vehicle passively when the handle is manually attached to the vehicle by a human operator to create an electrical connection between the vehicle and the charger. The handle has an actuator movable by the operator from a deactivated state to a first and a second position activated state where the mechanical latch operates independently of the state of the actuator when the handle is being manually attached but being mechanically released by the actuator when it is moved to its second activated state. A non-contact electrical switch means associated with the actuator breaks the electrical connection when the actuator is moved to the first position activated state before releasing the mechanical latch at the second activated position. A dual-activation push button includes a magnet that works in combination with the non-contact switch means where the non-contact switch means is a hall-effect sensor to operatively determine resistance operational states of the electrical connection. The dual-activation push button and magnet may also be combined with a reed switch to provide the similar beneficial features. An ergonomically designed handle is easily grasped by the operator of the handle to connect the handle to the vehicle inlet connection. The hall-effect sensor or reed switch is strategically located in passage of a handle on a printed circuit board to allow magnetic flux interaction with the magnet disposed on an extendable portion of a dual-mode push button. The handle may include a lamp that is activated with at least partial activation of the push-button to provide light to accurately locate the vehicle inlet connection in a dark environment for connection of the handle to the vehicle inlet connection. A thermal shutdown cutout device senses for an over-temperature event in the handle and alters the electrical connection to a high resistance state to electrically break the electrical connection during a sensed over temperature event. The high resistance state, as seen by the vehicle, prevents transmission of current on wire conductors carrying power signals through the handle for increased safety to the operator. A charging system powered by 120 VAC is constructed in a compact size that is suitable for storage in a trunk of the vehicle for remote use anywhere the vehicle travels as long as a 120 VAC power source is available when the battery needs to be electrically charged. The charging system any also be configured to be run off 240 VAC to charge the battery in a shorter time period in contrast with the charging station being connected to the 120 VAC power source.
While the present invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
All terms used in the claims are intended to be given their broadest ordinary meanings and their reasonable constructions as understood by those skilled in the art unless an explicit indication to the contrary is made herein. In particular, use of the singular articles such as “a,” “the,” “said,” . . . et cetera, should be read to recite one or more of the indicated elements unless a claim recites an explicit limitation to the contrary.
Claims
1. An electric vehicle charge coupler for both mechanically and electrically coupling and decoupling a charger to said vehicle, comprising:
- a handle including a mechanical latch that securely mechanically locks said handle to said vehicle passively when said handle is manually attached to said vehicle by a human operator to create an electrical connection between said vehicle and said charger, said handle also having an actuator movable by said operator from a deactivated state to a first and a second position activated state, said mechanical latch operating independently of the state of said actuator when said handle is being manually attached but being mechanically released by said actuator when it is moved to its second activated state,
- a non-contact electrical switch means associated with said actuator to break said electrical connection when said actuator is moved to said first position activated state before releasing said mechanical latch at said second activated position, and
- biasing means to automatically move said actuator back to its deactivated state when released by said operator.
2. The charge coupler according to claim 1, wherein said switch means comprises a hall-effect sensor and the activator comprises a dual-mode push button including a magnet to supply magnetic flux to operatively control said hall-effect sensor.
3. The charge coupler according to claim 2, wherein the dual-mode push button includes, the first depress position having at a first travel distance from the rest position and the second depress position having a second travel distance from the rest position, said second travel distance being greater than said first travel distance in relation to the rest position, said magnetic flux being supplied to the hall-effect sensor when the push button is disposed in the rest position when in said electrical connection and said magnetic flux being removed from affecting the hall-effect sensor when the push button is urged to one of the first depress position and the second depress position.
- (i.) a rest position associated with the deactivated state,
- (ii.) a first depress position associated with the first position activated state,
- (iii) a second depress position associated with the second position activated state,
4. The charge coupler according to claim 2, further including,
- an electrical switching device intermediate the hall effect sensor and the electrical connection.
5. The charge coupler according to claim 1, wherein said switch means comprises an electrical circuit comprising a reed switch and the activator includes a dual-mode push button.
6. The charge coupler according to claim 1, further including,
- a thermal shutdown device for sensing an over-temperature condition in an environment proximate said coupler, and when said over-temperature condition is sensed by said thermal device, said thermal shutdown device is operable to determine an operational state of the electrical connection.
7. The charge coupler according to claim 1, wherein said vehicle includes a connector having a shoulder and the activator engages the mechanical latch so that an end of the mechanical latch disengages from the shoulder so that said coupler is removeably disengageable from said connector.
8. The charge coupler according to claim 3, wherein said electrical connection comprises electrical resistance states, a first resistance state being a low resistance state when said dual-mode push-button is in a rest position and a second resistance state being a high resistance state when said electrical connection is broken.
9. An electric vehicle charging system comprising:
- a charger being releasably coupled to a power source to provide power means for the charger and at least one power electrical signal; and
- a charge coupler for both mechanically and electrically coupling and decoupling said charger to said vehicle, said charge coupler including, a handle including a mechanical latch that securely mechanically locks said handle to said vehicle passively when said handle is manually attached to said vehicle by a human operator to create an electrical connection between said vehicle and said charger, said handle also having an actuator movable by said operator from a deactivated state to a first and a second position activated state, said mechanical latch operating independently of the state of said actuator when said handle is being manually attached but being mechanically released by said actuator when it is moved to its second activated state, a non-contact electrical switch means associated with said actuator to break said electrical connection when said actuator is moved to said first position activated state before releasing said mechanical latch at said second activated position, and biasing means to automatically move said actuator back to its deactivated state when released by said operator.
10. The charging system according to claim 9, wherein the switch means is a hall-effect sensor and the activator includes a dual-mode push button including a magnet to supply magnetic flux to operatively control the hall-effect sensor.
11. The charging system according to claim 10, wherein the dual-mode push button includes, the first depress position having at a first travel distance from the rest position and the second depress position having a second travel distance from the rest position, said second travel distance being greater than said first travel distance in relation to the rest position, said magnetic flux being supplied to the hall-effect sensor when the push button is disposed in the rest position when in said electrical connection and said magnetic flux being removed from affecting the hall-effect sensor when the push button is urged to one of the first depress position and the second depress position.
- (i.) a rest position associated with the deactivated state,
- (ii.) a first depress position associated with the first position activated state,
- (iii) a second depress position associated with the second position activated state,
12. The charging system according to claim 9, wherein the switch means includes an electrical circuit having a reed switch and the activator includes a dual-mode push button.
13. The electrical charging system of claim 9, wherein the power source is one of,
- (i.) 120 VAC, and
- (ii) 240 VAC.
14. A method to mechanically and electrically couple and decouple a charger to a vehicle, comprising:
- passively mechanically connecting a mechanical latch in a handle of a charge coupler that mechanically locks the handle to the vehicle when the handle is manually attached by a human operator to said vehicle to create an electrical connection between said charger and said vehicle, said charge coupler being in electrical communication with said charger and said handle including an actuator movable by said operator from a deactivated state to a first and a second position activated state, said mechanical latch operating independently of the state of said actuator when said handle is being manually attached but configurable to be mechanically released by said actuator when it is moved to its second activated state;
- partially inducing the activator to the first position activated state to operatively control a non-contact electrical switch means associated with said actuator to break said electrical connection before releasing said mechanical latch at said second activated position; and
- completely inducing said activator to the second position activated state such that the mechanical switch engages the mechanical latch to mechanically unlock the handle from the vehicle so that the handle is manually removeable by said operator from the vehicle.
15. The method according to claim 14, wherein the steps in claim 14 occur in the order recited.
16. The method according to claim 14, wherein the step of partially inducing the activator further includes the switch means being a hall-effect sensor and the activator being a dual-mode push button that includes a magnet that moves with depression of the dual-mode push button.
17. The method according to claim 14, wherein the steps of the method further include the activator being a dual-mode push button, the dual-mode push button including, the first depress position having at a first travel distance from the rest position and the second depress position having a second travel distance from the rest position, said second travel distance being greater than said first travel distance in relation to the rest position, said magnetic flux being supplied to the hall-effect sensor when the push button is disposed in the rest position when in said electrical connection and said magnetic flux being removed from affecting the hall-effect sensor when the push button is urged to one of the first depress position and the second depress position.
- (i.) a rest position associated with the deactivated state,
- (ii.) a first depress position associated with the first position activated state,
- (iii) a second depress position associated with the second position activated state,
18. The method according to claim 14, wherein the step of partially inducing the activator further includes the switch means being a reed switch and the activator being a dual-mode push button that includes a magnet that moves in a direction of travel associated with depression of the dual-mode push button.
19. The method according to claim 14, wherein the vehicle comprises one of,
- (i) an electric vehicle, and
- (ii) a hybrid electric vehicle.
Type: Application
Filed: Nov 19, 2010
Publication Date: May 24, 2012
Applicant: DELPHI TECHNOLOGIES, INC. (Troy, MI)
Inventors: JEFFREY S. KIKO (Kent, OH), Joseph Matthew Senk (Cortland, OH), Brian D. Pasha (Cortland, OH), Steven William Marzo (Cortland, OH)
Application Number: 12/950,298
International Classification: H02J 7/00 (20060101);