1. A cleaning device, said device comprising:
a basin,
a temperature controller connected to a hot water supply and a cold water supply,
a flow controller connected to said temperature controller, said temperature controller supplying water to said flow controller at a specified temperature, and
at least one sprayer located in said basin and connected to said flow controller.
2. The cleaning device according to claim 1, wherein said flow controller comprises:
a valve casing with a casing bore, and
a central flow controller with a flow bore, said central flow controller moving within the casing bore of said valve casing, and changing an area of overlap between said flow bore and said casing bore to adjust water flow.
3. The cleaning device according to claim 1, further comprising:
a housing disposed at the rear of said basin, having at least one receiving hole therethrough, and holding said flow controller and said temperature controller therein.
4. The cleaning device according to claim 3, said housing further comprising:
a cold water passage therein connected to said cold water supply, and
a hot water passage therein connected to said hot water supply.
5. The cleaning device according to claim 1, further comprising:
a first check valve at a first interface with said cold water supply, and
a second check valve at a second interface with said hot water supply.
6. The cleaning device according to claim 1, further comprising:
a cover for said basin, and
a sitting ring across the rim of said basin.
7. A cleaning device, said device comprising:
a basin,
a flow controller connected to a water supply,
a transversely-oscillating sprayer located in a first transverse position within said basin and connected to said flow controller, and
a longitudinally-oscillating sprayer located in a second longitudinal position within said basin and connected to said flow controller, the outward flow of water through said sprayers being user adjustable.
8. The cleaning device according to claim 7, further comprising:
a distributor valve,
a distributor valve casing, and
a distributor controller connected to said distributor valve through said distributor valve casing, said distributor controller adjusting water flow in a water passage between said transversely-oscillating sprayer and said longitudinally-oscillating sprayer.
9. The cleaning device according to claim 8, wherein said distributor valve has a hexagonally-shaped end with an upper salient and a lower salient, said hexagonally-shaped end moving in said water passage to adjust water flow between said transversely-oscillating sprayer and said longitudinally-oscillating sprayer.
10. The cleaning device according to claim 7, wherein said flow controller comprises:
a valve casing with a casing bore, and
a central flow controller with a flow bore, said central flow controller moving within the casing bore of said valve casing, and changing an area of overlap between said flow bore and said casing bore to adjust water flow.
11. The cleaning device according to claim 7, further comprising:
a housing disposed at the rear of said basin, with a receiving hole therein holding said flow controller.
12. The cleaning device according to claim 7, further comprising:
a housing disposed at the rear of said basin, having a receiving hole therein connecting a first water output conduit from said flow controller to said transversely-oscillating sprayer and a second water output conduit from said flow controller to said longitudinally-oscillating sprayer.
13. The cleaning device according to claim 7, further comprising:
a cover for said basin, and
a sitting ring across the rim of said basin.
14. A sprayer device for use in a cleaning device, said sprayer device comprising:
a transversely-oscillating sprayer in a first transverse position within said cleaning device,
a longitudinally-oscillating sprayer in a second longitudinal position within said cleaning device, and
a water distributor adjusting water flow between said transversely-oscillating sprayer and said longitudinally-oscillating sprayer, the outward flow of water through said sprayers being user adjustable.
15. The sprayer device according to claim 14, wherein said water distributor comprises:
a distributor valve,
a distributor valve casing, and
a distributor controller connected to said distributor valve through said distributor valve casing, said distributor controller adjusting water flow in a water passage between said transversely-oscillating sprayer and said longitudinally-oscillating sprayer.
16. The sprayer device according to claim 15, wherein said distributor valve has a hexagonally-shaped end with an upper salient and a lower salient, said hexagonally-shaped end moving in said water passage to adjust water flow between said transversely-oscillating sprayer and said longitudinally-oscillating sprayer.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for controlling an eddy current braking system in a motor vehicle, said motor vehicle having a prime mover linked to said eddy current braking system to provide torque thereto, and said eddy current braking system having a retarder assembly including at least a rotor and a stator, said method comprising the steps of:
detecting a feedback current from said retarder assembly;
detecting a rotor speed of said rotor;
providing a signal indicative of a desired retarding torque;
determining a command current for said retarder as a function of said feedback current, rotor speed and desired retarding torque using a closed-loop sliding-mode control algorithm; and
providing said command current to said retarder to control application of torque to said prime mover.
2. The method of claim 1 wherein said sliding-mode control algorithm further implements a pre-determined convergence rate of within the boundary layer of thickness .
3. The method of claim 2 wherein said algorithm further comprises:
7
I
cmd
=
L
(
f
1
(
)
+
2
f
2
(
)
i
)
R
T
des
–
(
f
0
+
f
1
i
+
f
2
i
2
)
+
(
f
1
(
)
+
2
f
2
(
)
i
)
R
L
i
+
SAT
{
1
{
T
des
–
(
f
0
(
)
+
f
1
(
)
*
i
+
f
2
(
)
*
i
2
)
)
}
wherein Icmd is said command current, L is the coil winding inductance of said stator, R is the coil winding resistance of said stator, is said rotary speed, Tdes is said desired retarding torque and i is said feedback current.
4. An eddy current braking system for a motor vehicle having a prime mover turning a shaft, said system comprising:
an eddy current brake including a rotor, a stator and a command current input, said rotor operably connected to said shaft;
at least one sensor operably connected to said rotor to detect a rotational speed of said rotor;
at least one sensor operably connected to said stator to determine a feedback current of said brake;
a computer in communication with said sensors;
a torque selector in communication with said computer for selecting a desired retarding torque; and
a memory accessible to said computer;
wherein said memory stores an algorithm for said computer to determine a command current Icmd as a function of said feedback current, rotor speed and desired retarding torque.
5. The system of claim 4 wherein said algorithm further comprises a closed-loop sliding-mode control algorithm.
6. The system of claim 5 wherein said sliding-mode control algorithm further implements a pre-determined convergence rate of within the boundary layer of thickness .
7. The system of claim 6 wherein said algorithm further comprises:
8
I
cmd
=
L
(
f
1
(
)
+
2
f
2
(
)
i
)
R
T
des
–
(
f
0
+
f
1
i
+
f
2
i
2
)
+
(
f
1
(
)
+
2
f
2
(
)
i
)
R
L
i
+
SAT
{
1
{
T
des
–
(
f
0
(
)
+
f
1
(
)
*
i
+
f
2
(
)
*
i
2
)
)
}
wherein Icmd is said command current, L is the coil winding inductance of said stator, R is the coil winding resistance of said stator, is said rotary speed, Tdes is said desired retarding torque and i is said feedback current.
8. The system of claim 7 wherein said pre-determined values of convergence rate and boundary layer thickness further comprise values selected for maximum braking performance.
9. The control system of claim 8, further comprising a digital signal processor connected between the sensors and the computer, wherein the digital signal processor receives outputs from the sensors, processes the outputs, and sends the outputs to the computer.
10. A method for controlling an eddy current braking system in a motor vehicle, said motor vehicle having a prime mover linked to said eddy current braking system to provide torque thereto, and said eddy current braking system having a retarder assembly including at least a rotor and a stator, said method comprising the steps of:
providing rotor speed and feedback current information to a computer;
verifying that said rotor speed is above a minimum value;
calculating a command current as a function of said rotor speed, feedback current, and desired torque;
converting the command current into a pulse-width modulated signal; and
providing said signal to said eddy current brake stator.
11. The method of claim 10 wherein said step of calculating a command current further comprises applying said rotor speed, feedback current and desired torque to the following algorithm:
9
I
cmd
=
L
(
f
1
(
)
+
2
f
2
(
)
i
)
R
T
des
–
(
f
0
+
f
1
i
+
f
2
i
2
)
+
(
f
1
(
)
+
2
f
2
(
)
i
)
R
L
i
+
SAT
{
1
{
T
des
–
(
f
0
(
)
+
f
1
(
)
*
i
+
f
2
(
)
*
i
2
)
)
}
wherein Icmd is said command current, L is the coil winding inductance of said stator, is a selected convergence rate, is a selected boundary layer thickness, R is the coil winding resistance of said stator, is said rotary speed, Tdes is said desired retarding torque and i is said feedback current.
12. An eddy current braking system for a motor vehicle having a prime mover turning a shaft linked to said eddy current braking system to provide torque thereto, and said eddy current braking system having a retarder assembly including at least a rotor and a stator, said system comprising:
means for detecting a feedback current from said retarder assembly;
means for detecting a rotor speed of said rotor;
means for providing a signal indicative of a desired retarding torque;
means for determining a command current for said retarder as a function of said feedback current, rotor speed and desired retarding torque using a closed-loop sliding-mode control algorithm; and
means for providing said command current to said retarder to control application of torque to said prime mover.