Electric public transit system
First Claim
1. An electric public transit system, comprisingan electric driven bus equipped with a cassette battery set and a bus-mounted control system;
- a charge station placed in a predetermined place for charging cassette battery sets; and
a loading and unloading apparatus;
whereinwhen the bus needs change the cassette battery set, the loading and unloading apparatus unloads the cassette battery set from the bus and loads a charged cassette battery set into the bus;
the charge station is equipped with a charge control system, and the loading and unloading apparatus is equipped with a loading and unloading control system;
the loading and unloading control system, the bus-mounted control system and the charge control system are able to intercommunicate;
whereby when the loading and unloading control system receives a signal sent from the bus-mounted control system of the bus that the bus will return to the charge station, the loading and unloading control system moves the loading and unloading apparatus to a predetermined position corresponding to the bus at the charge station and waits; and
when the bus arrives at the predetermined position, the loading and unloading control system controls the loading and unloading apparatus to exchange the cassette battery set with a charged cassette battery set, whereby the bus is able to operate on line continuously;
the charge station further includes a charger, and a power grid auto-trace apparatus for searching electrical consumption data of a power grid; and
the charge control system determines whether the power grid used is in valleys based on the searching data of the power grid auto-trace apparatus;
if yes, a full charge program is started in the charger controlled by the charge control system, and the cassette battery set is charged with full current until the cassette battery set is fully charged;
if no, a float charge program is started in the charger controlled by the charge control system, and the cassette battery set is charged with float current.
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Accused Products
Abstract
The present invention relates to an electric public transit system, comprising electric driven buses with a cassette battery set and bus-mounted control system, a charge station and a loading and unloading apparatus. When said bus needs change the cassette battery set, said loading and unloading apparatus takes said cassette battery set from said bus and then replace with a charged cassette battery set. Both said charge station and said loading and unloading apparatus are equipped with their control systems, respectively, which can intercommunicate with said bus-mounted control system. In the present invention, the cassette battery sets are charged during power consumption valleys of the power grid, and therefore, the transit system can save energy and benefit the environment. Additionally it is also fast and accurate for loading and unloading the cassette battery set in the system of the present invention, which can also guarantee the bus operating online continuously and greatly enhance the usage ratio of the bus.
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Citations
27 Claims
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1. An electric public transit system, comprising
an electric driven bus equipped with a cassette battery set and a bus-mounted control system; -
a charge station placed in a predetermined place for charging cassette battery sets; and a loading and unloading apparatus;
whereinwhen the bus needs change the cassette battery set, the loading and unloading apparatus unloads the cassette battery set from the bus and loads a charged cassette battery set into the bus; the charge station is equipped with a charge control system, and the loading and unloading apparatus is equipped with a loading and unloading control system; the loading and unloading control system, the bus-mounted control system and the charge control system are able to intercommunicate; whereby when the loading and unloading control system receives a signal sent from the bus-mounted control system of the bus that the bus will return to the charge station, the loading and unloading control system moves the loading and unloading apparatus to a predetermined position corresponding to the bus at the charge station and waits; and when the bus arrives at the predetermined position, the loading and unloading control system controls the loading and unloading apparatus to exchange the cassette battery set with a charged cassette battery set, whereby the bus is able to operate on line continuously; the charge station further includes a charger, and a power grid auto-trace apparatus for searching electrical consumption data of a power grid; and the charge control system determines whether the power grid used is in valleys based on the searching data of the power grid auto-trace apparatus; if yes, a full charge program is started in the charger controlled by the charge control system, and the cassette battery set is charged with full current until the cassette battery set is fully charged; if no, a float charge program is started in the charger controlled by the charge control system, and the cassette battery set is charged with float current. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27)
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25. A method for operating an electric public transit system, comprising steps of:
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operating an electric driven bus equipped with a cassette battery set and a bus-mounted control system; placing a charge station in a predetermined place with cassette battery sets charged or being charged; sending a return signal from the bus to the charge station when the bus needs change the cassette battery set; moving a charged cassette battery set in the charge station to a predetermined position corresponding to the bus at the charge station, while the bus is returning to the charge station; and unloading the cassette battery set from the bus when the bus arrives at the predetermined position, and loading the charged cassette battery set waiting at the predetermined position into the bus; whereby the bus operates on line continuously; the method further comprising steps of; searching, by a power grid auto-trace apparatus, electrical consumption data of a power grid; and determining, by a charge control system, whether a power grid used is in valleys based on the searching data of the power grid auto-trace apparatus; if yes, starting a full charge program in a charger controlled by the charge control system, and charging the cassette battery set with full current until the cassette battery set is fully charged; if no, starting a float charge program in the charger controlled by the charge control system, and charging the cassette battery set with float current. - View Dependent Claims (26)
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Specification