Control strategy for DC emergency direct current motor for an emergency hydraulic pump
First Claim
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1. A hybrid vehicle comprising:
- a power takeoff operation application;
a traction motor/generator;
a primary pump for supplying pressurized fluid to the power takeoff operation application, the traction motor/generator being connectable to the primary pump for operating the primary pump;
an auxiliary pump for supplying pressurized fluid to the power takeoff operation application;
an auxiliary motor connected to the auxiliary pump for operating the auxiliary pump;
a first electrical power source for supplying electrical power to the traction motor/generator;
a second electrical power source for supplying electrical power to the auxiliary motor; and
a programmable control system for coordinating energization of the traction motor/generator and auxiliary motor in response to an operator request for operation of the power takeoff operation application.
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Abstract
A control system for a hybrid-vehicle equipped with power takeoff equipment provides control over primary and redundant, relatively low output systems so that the redundant system is not damaged by concurrent operation of the primary system.
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Citations
8 Claims
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1. A hybrid vehicle comprising:
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a power takeoff operation application; a traction motor/generator; a primary pump for supplying pressurized fluid to the power takeoff operation application, the traction motor/generator being connectable to the primary pump for operating the primary pump; an auxiliary pump for supplying pressurized fluid to the power takeoff operation application; an auxiliary motor connected to the auxiliary pump for operating the auxiliary pump; a first electrical power source for supplying electrical power to the traction motor/generator; a second electrical power source for supplying electrical power to the auxiliary motor; and a programmable control system for coordinating energization of the traction motor/generator and auxiliary motor in response to an operator request for operation of the power takeoff operation application. - View Dependent Claims (2, 3, 4)
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5. Apparatus comprising:
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a primary motor; a primary pump for coupling to the primary motor for pressurizing a working fluid at pressure; an auxiliary motor; an auxiliary pump coupled to the auxiliary motor for delivering the working fluid at pressure; a machine connected to the primary pump and the auxiliary pump for utilizing pressurized working fluid from the primary pump or the auxiliary pump; and a control system for selecting a source of pressurized fluid for the machine from among the primary pump and the auxiliary pump, the controller providing control over operation of the auxiliary motor in response to the selection. - View Dependent Claims (6, 7, 8)
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Specification