Inductive charging method for vehicles
First Claim
1. An inductive charging method for vehicles, comprising a power sourcing (PS) device and a power receiving (PR) device, wherein the PS device includes first frequency converter PS sub-modules that are connected in parallel inside a frequency converter PS module;
- each of the first frequency converter PS sub-modules includes a PS microprocessor that is electrically connected with a PS driving unit, a signal analysis circuit capable of detecting and analyzing coil data signals, a coil voltage detection circuit capable of detecting voltage of a PS coil and a PS unit to supply electric power respectively;
the PS driving unit is electrically connected with a resonance circuit, which, together with the coil voltage detection circuit and signal analysis circuit, is further linked with a PS coil capable of transmitting electric power and data signals outwards;
each of the first frequency converter PS sub-modules is electrically connected with a signal control circuit via the PS microprocessor to control over power supply from the first frequency converter PS sub-modules and is connected in parallel with a power source by using the PS unit and PS driving unit;
the PR device includes a first PR sub-module and a second PR sub-module that are connected in series in its PR module;
the inductive charging method for vehicles comprises;
(A01) the PS device standby, switch off power output from the first frequency converter PS sub-modules and eliminate system status markings in the PS microprocessor;
(A02) the PS device detects if there is any PR device in an induction range by using the first frequency converter PS sub-module that corresponds to the first PR sub-module of the PR device;
proceed to step (A03) if a startup code is received from the PR device;
otherwise, proceed to step (A01);
(A03) the PS microprocessor of the first frequency converter PS sub-module corresponding to the first PR sub-module checks an ID code of the PR device and decides if it is on a list of authorized power receivers;
if yes, proceed to step (A04);
otherwise, proceed to step (A08);
(A04) the PS microprocessor of the first frequency converter PS sub-module corresponding to the first PR sub-module decides if the PR device is in a state of normal power supply by checking its power receiving status data code;
if yes, proceed to step (A07);
otherwise, proceed to step (A05);
(A05) mark system status of the PR device as incorrect in the PS microprocessor of the first frequency converter PS sub-module corresponding to the first PR sub-module;
(A06) deliver the incorrect system status in the PS microprocessor of the first frequency converter PS sub-module via the signal control circuit to the PS microprocessors of other first frequency converter PS sub-modules for handling;
(A07) check other system status markings delivered by the signal control circuit in the PS microprocessors of other first frequency converter PS sub-modules and decide if other first frequency converter PS sub-modules supply power normally;
if yes, proceed to step (A09);
otherwise, proceed to step (A08);
(A08) cut off power output from the first frequency converter PS sub-modules and proceed to step (A01);
(A09) the PS microprocessors of the first frequency converter PS sub-modules check the power currently received by using power status data codes from the PR device and compare it with a preset power;
if the currently received power is larger than the preset power, proceed to step (A10);
if the currently received power is smaller than the preset power, proceed to step (A11);
if it equals the preset power, proceed step (A12);
(A10) increase working frequency of output that should be adjusted from the corresponding PS microprocessor to the PS driving unit to reduce output frequency through frequency conversion, and then proceed to step (A12);
(A11) reduce the working frequency of the output that should be adjusted from the corresponding PS microprocessor to the PS driving unit to increase the output frequency through frequency conversion;
(A12) the PS microprocessors check if output power of the corresponding first frequency converter PS sub-modules has reached a preset upper limit;
if yes, proceed to step (A13);
otherwise, proceed to step (A14);
(A13) the PS microprocessors of other first frequency converter PS sub-modules mark the system status of the PS device as incorrect if the output power has reached the preset upper limit, and then proceed to step (A06);
(A14) the PS microprocessors continue to supply electricity and proceed to step (A03).
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Accused Products
Abstract
An inductive charging method for vehicles includes a power sourcing (PS) device using a first frequency converter PS sub-module to detect a power receiving (PR) device. The PS microprocessor can compare ID codes of the PR device and check power receiving status data codes. When finding an incorrect power supply, the PS microprocessor will mark it and make other first frequency converter PS sub-modules to cut off power supply through the signal control circuit, and even adjust output power based on power status data codes from the PR device. As total voltage of the PR module is increased by series connection, it is not necessary to use components of high-voltage specifications and water cannot go into sockets, thus preventing electricity leakage. Besides, no wired connection is required and operations concerning identification, stored value or deductions can be carried out.
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Citations
7 Claims
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1. An inductive charging method for vehicles, comprising a power sourcing (PS) device and a power receiving (PR) device, wherein the PS device includes first frequency converter PS sub-modules that are connected in parallel inside a frequency converter PS module;
- each of the first frequency converter PS sub-modules includes a PS microprocessor that is electrically connected with a PS driving unit, a signal analysis circuit capable of detecting and analyzing coil data signals, a coil voltage detection circuit capable of detecting voltage of a PS coil and a PS unit to supply electric power respectively;
the PS driving unit is electrically connected with a resonance circuit, which, together with the coil voltage detection circuit and signal analysis circuit, is further linked with a PS coil capable of transmitting electric power and data signals outwards;
each of the first frequency converter PS sub-modules is electrically connected with a signal control circuit via the PS microprocessor to control over power supply from the first frequency converter PS sub-modules and is connected in parallel with a power source by using the PS unit and PS driving unit;
the PR device includes a first PR sub-module and a second PR sub-module that are connected in series in its PR module;
the inductive charging method for vehicles comprises;(A01) the PS device standby, switch off power output from the first frequency converter PS sub-modules and eliminate system status markings in the PS microprocessor; (A02) the PS device detects if there is any PR device in an induction range by using the first frequency converter PS sub-module that corresponds to the first PR sub-module of the PR device;
proceed to step (A03) if a startup code is received from the PR device;
otherwise, proceed to step (A01);(A03) the PS microprocessor of the first frequency converter PS sub-module corresponding to the first PR sub-module checks an ID code of the PR device and decides if it is on a list of authorized power receivers;
if yes, proceed to step (A04);
otherwise, proceed to step (A08);(A04) the PS microprocessor of the first frequency converter PS sub-module corresponding to the first PR sub-module decides if the PR device is in a state of normal power supply by checking its power receiving status data code;
if yes, proceed to step (A07);
otherwise, proceed to step (A05);(A05) mark system status of the PR device as incorrect in the PS microprocessor of the first frequency converter PS sub-module corresponding to the first PR sub-module; (A06) deliver the incorrect system status in the PS microprocessor of the first frequency converter PS sub-module via the signal control circuit to the PS microprocessors of other first frequency converter PS sub-modules for handling; (A07) check other system status markings delivered by the signal control circuit in the PS microprocessors of other first frequency converter PS sub-modules and decide if other first frequency converter PS sub-modules supply power normally;
if yes, proceed to step (A09);
otherwise, proceed to step (A08);(A08) cut off power output from the first frequency converter PS sub-modules and proceed to step (A01); (A09) the PS microprocessors of the first frequency converter PS sub-modules check the power currently received by using power status data codes from the PR device and compare it with a preset power;
if the currently received power is larger than the preset power, proceed to step (A10);
if the currently received power is smaller than the preset power, proceed to step (A11);
if it equals the preset power, proceed step (A12);(A10) increase working frequency of output that should be adjusted from the corresponding PS microprocessor to the PS driving unit to reduce output frequency through frequency conversion, and then proceed to step (A12); (A11) reduce the working frequency of the output that should be adjusted from the corresponding PS microprocessor to the PS driving unit to increase the output frequency through frequency conversion; (A12) the PS microprocessors check if output power of the corresponding first frequency converter PS sub-modules has reached a preset upper limit;
if yes, proceed to step (A13);
otherwise, proceed to step (A14);(A13) the PS microprocessors of other first frequency converter PS sub-modules mark the system status of the PS device as incorrect if the output power has reached the preset upper limit, and then proceed to step (A06); (A14) the PS microprocessors continue to supply electricity and proceed to step (A03). - View Dependent Claims (2, 3, 4)
- each of the first frequency converter PS sub-modules includes a PS microprocessor that is electrically connected with a PS driving unit, a signal analysis circuit capable of detecting and analyzing coil data signals, a coil voltage detection circuit capable of detecting voltage of a PS coil and a PS unit to supply electric power respectively;
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5. An inductive charging method for vehicles, comprising a power sourcing (PS) device and a power receiving (PR) device, wherein the PS device includes a frequency converter PS module with two first frequency converter PS sub-modules connected in parallel, and the PR device includes a PR module in which a first PR sub-module and a second PR sub-module are installed in series;
- the first and second PR sub-modules are equipped with a PR microprocessor respectively, and the PR microprocessors are connected with a voltage detection circuit capable of detecting voltage of a power source, an AM carrier modulation circuit capable of coding data signals, a breaker protection circuit for control over switching in operation and a voltage stabilizing circuit and a DC step-down transformer to stabilize the voltage of the power source;
the breaker protection circuit is electrically connected with the PR microprocessor and voltage stabilizing circuit, while the voltage detection circuit, breaker protection circuit and DC step-down transformer are electrically connected with a rectifier filter circuit used for filtering and rectifying power signals respectively;
then, the rectifier filter circuit and AM carrier modulation circuit are electrically connected to a resonance circuit, so that the resonance circuits are electrically connected with PR coils that are arranged in alignment with PS coils of the first frequency converter PS sub-modules for inductive signal transmission;
the voltage stabilizing circuit of the second PR sub-module is electrically connected with a PR output terminal, and the voltage stabilizing circuit of the second PR sub-module is connected with a bleeder circuit to shunt total voltage and then is electrically connected with the PR microprocessor of the first PR sub-module;
the first and second PR sub-modules are connected in series to produce the total voltage and compare in by using the PR microprocessor;
the inductive charging method for vehicles comprises;(B01) the first PR sub-module of the PR device receives a detection signal from the PS device and feeds back a startup code to the corresponding first frequency converter PS sub-module in the PS device; (B02) aforesaid first PR sub-module transmits an identification code to the corresponding first frequency converter PS sub-module in the PS device; (B03) aforesaid first PR sub-module sends a power supply status data code to the corresponding first frequency converter PS sub-module in the PS device; (B04) the first, second and third PR sub-modules send data codes of received power status to the corresponding first frequency converter PS sub-modules of the PS device; (B05) the first PR sub-module checks if voltage of the PR output terminal is equal to a preset voltage by using the bleeder circuit;
if yes, proceed to step (B06);
otherwise, mark incorrect status and proceed to step (B03);(B06) the first and second PR sub-modules of the PR device continue to receive electric power and proceed to step (B02). - View Dependent Claims (6, 7)
- the first and second PR sub-modules are equipped with a PR microprocessor respectively, and the PR microprocessors are connected with a voltage detection circuit capable of detecting voltage of a power source, an AM carrier modulation circuit capable of coding data signals, a breaker protection circuit for control over switching in operation and a voltage stabilizing circuit and a DC step-down transformer to stabilize the voltage of the power source;
Specification