1. A vehicle stability control system comprising:
a base required driving force calculation unit that calculates a physical quantity corresponding to a base required driving force desired by a driver to generate the base required driving force at a driving wheel of a vehicle;
an estimated driving force estimation unit that obtains a physical quantity corresponding to an estimated driving force that is estimated as being generated in the vehicle; and
a required driving force correction unit that obtains a corrected required driving force in such a way that a pitching vibration possibly occurring in the vehicle when the estimated driving force is generated is obtained on the basis of the physical quantity corresponding to the estimated driving force, a correction to suppress the pitching vibration is obtained, and the physical quantity corresponding to the base required driving force calculated by the base required driving force calculation unit is corrected on the basis of the correction,
wherein the corrected required driving force obtained by the required driving force correction unit is generated at the driving wheel.
2. The vehicle stability control system according to claim 1, wherein the required driving force correction unit has an equation of state describing state quantities of the vehicle on the basis of an on-spring body model of the vehicle and also an output equation describing the pitching vibration with respect to the state quantities on the basis of the equation of state, and the physical quantity corresponding to the base required driving force is corrected so as to suppress the fluctuation of the pitching vibration obtained from the output equation and the state quantities.
3. A vehicle stability control system comprising:
a base required driving force calculation unit that calculates a physical quantity corresponding to a base required driving force desired by a driver to generate the base required driving force at a driving wheel of a vehicle;
an estimated driving force estimation unit that obtains a physical quantity corresponding to an estimated driving force that is estimated as being generated in the vehicle; and
a required driving force correction unit that obtains a corrected required driving force in such a way that a fluctuation of a front or rear wheel contact load possibly occurring in the vehicle when the estimated driving force is generated is obtained on the basis of the physical quantity corresponding to the estimated driving force, a correction to reduce a derivative term of the fluctuation of the front or rear wheel contact load is obtained, and the physical quantity corresponding to the base required driving force calculated by the base required driving force calculation unit is corrected on the basis of the correction,
wherein the corrected required driving force obtained by the required driving force correction unit is generated at the driving wheel.
4. The vehicle stability control system according to claim 3, wherein the required driving force correction unit has an equation of state describing state quantities of the vehicle on the basis of an on-spring body model of the vehicle and an output equation describing the derivative term of the fluctuation of the front or rear wheel contact load with the state quantities on the basis of the equation of state, and the physical quantity corresponding to the base required driving force is corrected so as to reduce the derivative term of the fluctuation of the front or rear wheel contact load obtained from the output equation and the state quantities.
5. A vehicle stability control system comprising:
a base required driving force calculation unit that calculates a physical quantity corresponding to a base required driving force desired by a driver to generate the base required driving force at a driving wheel of a vehicle;
an estimated driving force estimation unit that obtains a physical quantity corresponding to an estimated driving force that is estimated to be being generated in the vehicle; and
a required driving force correction unit that obtains a corrected required driving force in such a way that a vertical motion of the vehicle body possibly occurring in the vehicle when the estimated driving force is generated is obtained on the basis of the physical quantity corresponding to the estimated driving force, a correction to suppress the fluctuation of the vertical motion of the vehicle body is obtained, and the physical quantity corresponding to the base required driving force calculated by the base required driving force calculation unit is corrected on the basis of the correction;
wherein the corrected required driving force obtained by the required driving force correction unit is generated at the driving wheel.
6. The vehicle stability control system according to claim 5, wherein the required driving force correction unit has an equation of state describing state quantities of the vehicle on the basis of an on-spring body model of the vehicle and an output equation describing the vertical motion of the vehicle body with the state quantities on the basis of the equation of state, and the physical quantity corresponding to the base required driving force is corrected so as to suppress the vertical motion of the vehicle body obtained from the output equation and the state quantities.
7. The vehicle stability control system according to claim 1, wherein the base required driving force calculation unit obtains a base required engine torque or a base required output axle torque as a physical quantity corresponding to the base required driving force.
8. The vehicle stability control system according to claim 1, further comprising a running resistance disturbance estimation unit that estimates a running resistance disturbance applied to a wheel of the vehicle,
wherein the required driving force correction unit estimates that a value obtained by adding a running resistance disturbance estimated by the running resistance disturbance estimation unit to a physical quantity corresponding to the estimated driving force obtained by the estimated driving force calculation unit is a currently generated driving force, and a correction is obtained as the one used when a driving force, in which this running resistance disturbance is taken into consideration, is generated.
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. An electroactive tissue scaffold, comprising:
a. a polycaprolactone matrix; and
b. a polymerizable unit yielding an electrochemically responsive polymer located in the pores of the matrix and anchored thereto by polymerization.
2. The scaffold of claim 1, wherein the scaffold is biodegradable.
3. The scaffold of claim 1, wherein the polymerizable unit yielding an electrochemically responsive polymer is an aromatic compound.
4. The scaffold of claim 3, wherein the aromatic compound is heterocyclic.
5. The scaffold of claim 4, wherein the heterocyclic aromatic compound is a pyrrole.
6. The scaffold of claim 1, wherein the polymerizable unit yielding an electrochemically responsive polymer is selected from a group consisting of:
a. an aniline;
b. an aniline derivative;
c. a furan;
d. a furan derivative;
e. a thiophene;
f. a thiophene derivative;
g. ferrocene;
h. a ferrocene derivative;
i. a porphyrin; and
j. a porphyrin derivative.
7. The scaffold of claim 6, wherein the polymerizable unit yielding an electrochemically responsive polymer is selected from a group consisting of:
a. 3,4-ethylenedioxythiophene; and
b. a derivative of 3,4-ethylenedioxythiophene.
8. The scaffold of claim 1, wherein the scaffold is bioerodible.
9. An electroactive tissue scaffold produced by a process comprising:
a. obtaining polycaprolactone;
b. obtaining a polymerizable unit that yields an electrochemically responsive polymer; and
c. polymerizing the electrochemically responsive unit and the polycaprolactone in a solvent, the solvent being chosen such that the polycaprolactone is insoluble therein.
10. A method of manufacturing an electroactive tissue scaffold, comprising the following steps:
a. obtaining polycaprolactone;
b. obtaining a polymerizable unit that yields an electrochemically responsive polymer; and
c. initiating a polymerization of the polycaprolactone and the electrochemically responsive unit in the presence of a solvent in which the polycaprolactone is insoluble.
11. The method of claim 10, wherein the solvent is water and the polymerizable unit that yields an electrochemically responsive polymer is chosen such that the scaffold is bioerodible.
12. The method of claim 11, wherein the polymerizable unit that yields an electrochemically responsive polymer is an aromatic compound.
13. The method of claim 12, wherein the aromatic compound is heterocyclic.
14. The method of claim 13, wherein the polymerizable unit that yields an electrochemically responsive polymer is a pyrrole derivative.
15. The method of claim 10, wherein the polymerizable unit that yields an electrochemically responsive polymer is pyrrole, the solvent is water, and the initiating step is carried out using polystyrenesulfonate and ferric chloride.
16. The method of claim 15, further comprising the step of washing to remove monomers, oligomers, and initiators.
17. A method of manufacturing a polycaprolactone-based electroactive tissue scaffold, comprising the following steps:
a. obtaining a polycaprolactone matrix;
b. obtaining pyrrole;
c. polymerizing the pyrrole in an aqueous solution that includes the polycaprolactone matrix, polystyrenesulfonate and ferric chloride to produce a polycaprolactone-based electroactive scaffold; and
d. washing the polycaprolactone-based electroactive scaffold to remove the ferric chloride and unbound polystyrenesulfonate.
18. A method of delivering nerve growth factor to nerve tissue, comprising the following steps:
a. culturing Schwann cells on an electroactive tissue scaffold;
b. implanting the scaffold and cultured Schwann cells into the peripheral nerve tissue to be repaired; and
c. electrically stimulating the Schwann cells by placing a voltage across the scaffold.