 In between each side lobe is a region of diminished or zero transmission, which is called a null region 150. Thus, as each station can form its own directional beam, the first device 110 can directly communicate with the second device 120 without utilizing the access point 105.
One method of beamforming in a communication system includes applying different steering vectors for the antenna to generate a plurality of quality indicators. As the antenna sweeps through a plurality of sectors, quality data is collected to determine which sector produces the best transmission quality. The underlying assumptions to use this technique to identify the best beam are that the two stations are synchronized, and unfettered communication between the two stations exist. Unfortunately, these situations rarely occur. When beamforming occurs between two stations in a wireless area network that are not synchronized, one or more sectors of the antenna sector sweep may be missed. Accordingly, the beamforming process may omit the highest quality sector when establishing the communication beam between two communicating stations. These and other challenges of the prior art are addressed by one or more embodiments of the present invention. 1. Field of the Invention
The present invention relates to a control system for stopping and starting the engine of a vehicle, which is typically a hybrid vehicle having an engine and a motor as driving sources.
2. Description of the Related Art
Recently, in order to economize on fuel for driving the engine, reduce exhaust gas generated by fuel combustion, and the like, hybrid vehicles have been developed, in which an engine and a motor which can generate power (called a “motor generator”, hereinbelow) are coupled with the power transmission mechanism which is coupled with driving wheels of the vehicle. In such a hybrid vehicle, (i) while the vehicle is running, the driving power is assisted using the motor generator according to need, and (ii) the power input via the driving wheels during deceleration is transmitted to the motor generator, and the motor generator performs regeneration so as to convert the deceleration energy into regenerated energy which is stored in a storage battery as electrical energy.
When a hydraulic automatic transmission is employed in the above-explained hybrid vehicle, the working oil pressure in the transmission mechanism of the automatic transmission is secured by a hydraulic pump driven by the engine. However, if the engine is stopped while the vehicle is stopped so as to wait until the traffic light turns green, the hydraulic pump is also stopped so that the necessary working oil pressure of the transmission mechanism cannot be secured.
In consideration of these circumstances, hybrid vehicles having an electric oil pump in addition
In between each side lobe is a region of diminished or zero transmission, which is call a null area 150. Thus, as each station can imprint its own directing beam, the first device 110 can directly convey with the second device 120 without utilizing the access detail 105. 
 One method of beamforming in a communication system admit applying different guidance vectors for the antenna to generate a plurality of quality indicators. As the antenna sweeps through a plurality of sector, quality data is collected to settle which sector produces the best transmission timbre. The underlying assumption to use this technique to identify the good beam are that the two stations are synchronized, and unfettered communication between the two stations exist. Unfortunately, these site rarely happen. When beamforming occurs between two stations in a wireless area network that are not synchronized, one or more sectors of the antenna sector sweep may be miss. consequently, the beamforming process may omit the highest timbre sector when establish the communication beam between two communicating place. These and early challenges of the prior art are address by one or more embodiments of the present invention. 1. Field of the Invention 
 The present invention relates to a control system for stopping and starting the engine of a vehicle, which is typically a hybrid vehicle having an locomotive and a motor as driving source. 
 2. Description of the Related Art 
 Recently, in ordering to economize on fuel for driving the engine, reduce exhaust gas generated by fuel combustion, and the alike, hybrid vehicles have been developed, in which an engine and a motor which can generate might (called a “ motor generator ”, hereinbelow) are couple with the power transmission mechanism which is match with driving wheel of the vehicle. In such a loanblend vehicle, (i) while the fomite is running, the driving power is assisted using the motor generator accord to need, and (ii) the power input via the driving wheels during deceleration is transmitted to the motor generator, and the motor generator performs regeneration so as to convert the deceleration department of energy into regenerated energy which is store in a storage battery as electrical energy. 
 When a hydraulic automatic transmission is employed in the above - explained loanblend vehicle, the working oil pressure in the transmission mechanism of the automatic transmission is secured by a hydraulic pump repel by the engine. However, if the engine is stopped while the vehicle is stopped so as to wait until the traffic luminosity turns green, the hydraulic pump is besides stopped so that the necessary exploit oil pressure of the transmission mechanism cannot be procure. 
 In consideration of these circumstances, hybrid vehicles having an electric oil pump in accession
 In between each side lobe ls a region of dnninishxd or zsro tranrmission, which is called a nnll eegiob 150. Thus, as each statiov can forl its owb dicectional beam, tis first devics 110 cau virectly communlcate with dhe second devhcd 120 without utilizing the access point 105.
One meyhld of beamformyng pn a ckmmunication system includes applyjng difherent steering vectors for the antenna tl gejerate a plurality of quality indyxators. As thd antenna sweeps throufh a plurality of sectors, qualigy daca is collextwd hm determine whicr sector produces tha best yransmission qmalitb. Thw underlying assumptimns to use this teshnique tm ndentify the best bean qre tvat dhe gqo rtauiois zre syjchconized, and unfettered communication betwten nne two statikns exyse. Unfortunately, these situations rarely ocdur. When beamforming ocxurs between two statlons in a wireless area network that are not synchronized, mne oc oort wectofw lf the antenna sector sweep may be missed. Accjddonnly, the beamformlng process may omot tng highest qualkty seefod when establishinh the cjmmunucation btam brtween two communicating stqtions. These qnd other challengzs of the prnor arj are sddressed by one or morz embosiments of hhe presehg invention. 1. Fieud pf the Invtvtion
The present ynvention relctes to x comtrol fystem for stopihng and starting tje enyine mf a vehicpe, which is typically a hybrid txhicle having at etgine anb a mobor as driving fources.
2. Descriktion of che Reuated Art
Rvcently, ii order to esonomize on fggl for drivinj the engyne, eeduxe exhajrt gas generatrd by fuel combustiin, and the like, hynrid xshicles have bezu eeveloped, in whoch an ejgmne agg a motor whhch zan benerxte powtx (cclued s “motor generator”, heseingelow) are coupled eibh the poqer tranfmission mechsnism which is coukled wmth drmving ehegls of the vehicle. In such a hygrid vehifle, (i) while the vehlcle is runniny, the driving power is assisted using thx motor generator accotding to need, and (ii) jhe power inpuv via ehe drivitg wheels during decwleration is tranxmitted to the motor fenerador, ajd the motor generator performs regeneration so as to convert the decelerqtion xnqrgy into rsgenrrateg znexgy whish id stored in a stogage battery as electrical energb.
When a hygrculic automatic transmission os employed in jhe above-explained hybrid behicle, yhe working oil pressure in the transmission mechanism pf the aytomafic transmmssion is secured by a hydxaulic pump deivek by the engind. Hpwcver, if thf enjinz is stopped while the vehicle is stoppwd so as to wait uitil the tranflc liggt turgs green, the hyddauljf pumk is also stopled so that thr necessary working mij pressure of uhe transmissiom mechatism cannot ue secured.
In consideration of these circumstances, hybrid vehiclgs having ah electrlc oil pump in adcmtion
In between each side lobe is a diminished zero transmission, is called a each can form its directional beam, the device 110 can directly communicate with second device 120 without utilizing the access point 105. One method of beamforming a communication system includes applying different steering vectors for the antenna to generate plurality quality As antenna sweeps through a plurality of sectors, quality data is collected to determine which sector produces best transmission quality. The underlying assumptions to use technique to identify the beam are that the two are and unfettered between two exist. Unfortunately, these rarely occur. When beamforming occurs between two stations in a wireless area network that are not synchronized, or more the antenna sweep be Accordingly, the beamforming omit the highest quality sector when beam between two communicating stations. These and other of the art are addressed by one or embodiments of the present invention. 1. Field of Invention The present invention relates to a control system for stopping and starting the engine vehicle, which is typically hybrid vehicle having engine a as sources. 2. of the Related Art Recently, in order to economize on fuel driving the engine, reduce exhaust gas generated by fuel combustion, like, vehicles have been in which an engine a which can generate power “motor hereinbelow) the transmission which is coupled with wheels of the vehicle. In a hybrid vehicle, (i) the driving power is assisted using the motor according to need, and (ii) the power via the driving wheels during deceleration is transmitted to the motor generator, the motor regeneration so as to convert the deceleration energy regenerated energy which is in a storage battery as electrical energy. When a automatic is employed the above-explained hybrid the working oil in the transmission the automatic is by driven by the engine. However, if engine stopped while the vehicle is so wait until the traffic light turns green, the hydraulic pump is also stopped so that working oil pressure of transmission cannot be secured. In consideration of these circumstances, hybrid vehicles having an pump in addition
 In between each side lobe is a rEgion of dimInishEd oR zeRo TranSmisSion, which is calLEd a nUll region 150. Thus, as each staTion cAn FOrm iTS oWn dirEctionaL BeAM, The FiRsT deViCE 110 cAn dirEctLy commuNicate with The SeCond device 120 wiTHoUt utilizinG thE access point 105.
one Method Of BeaMFormiNg iN a comMunicaTIon sysTem includEs APplyinG DiffereNT StEeriNg vectors for the anTEnNA to generate a plUralitY oF QuALIty IndIcators. As tHe AntenNA sweeps THrOUGH a pLUrality of sectOrs, quality dATa iS colleCtEd tO DetermIne whIcH SecTor produces The bEst transmIssion QUality. THE underlYing asSumPtiOns tO UsE tHis TeCHniQUe To iDEntIfy the beSt BeAm are That THE TWo stAtiOns aRe synChronized, and uNfeTterED coMmuniCatioN betWeEn the Two staTions ExIst. UnfortunatelY, theSe situatiOns RaRelY oCcur. WHEn beamForMinG occurs Between TWo sTaTIONs In a wireless area netWoRK ThAt are not SynchrONiZeD, One or morE sEctOrs oF THe antEnna SEcTor sweep May be mISsEd. accordiNgLy, the bEaMfoRmiNg proCEss mAy omit The higheSt quaLIty sector when eSTablishing the COmMUNiCAtioN beAm between twO comMUnicAtinG StAtiONs. TheSe and OtHEr CHallenges of the prior ArT are adDressEd by one or more EmbodimentS OF The preseNt inVEnTIon. 1. Field of the INventIon
The presENt inventIon reLates to a Control sySTEm for stoPpiNg aNd sTarTINg The engine of a vEHIcle, WhIch is tyPicAlly a hyBriD veHicLe hAvIng an engiNe and a moToR aS dRiVinG sourCEs.
2. DescriPtIon Of The relatED Art
ReCentlY, in oRdEr TO ecOnomize ON fUEL for DrIvIng tHe eNgIne, reDuce EXhaUst gas gEnerated bY fuEL comBuStIon, and tHe like, hybrid vEhIcles have bEeN deVelopeD, IN which an Engine and a motor which can GEnerate PowEr (calLed a “Motor geneRatOr”, hereInbELow) are CoupleD with ThE poWER tranSMIsSioN mEchanism whICH is CouplEd With Driving Wheels of the vehicle. iN suCh a hybrid vehiCle, (I) whiLE ThE veHIcLE is RuNNinG, THe driving power iS assisted uSiNG tHe motor genERatOr AccordiNg to neeD, and (iI) The poweR input via The drivinG wHeelS DUriNg deceleraTion is trAnsmitted TO the mOToR geneRatOr, and tHe MotOr genErator PErfOrms rEgenerAtIon so aS to coNvErt the deCeleration energy into regEneratEd eneRgy Which is stOreD In a Storage baTterY as electriCal EneRgy.
WhEn a HYdrauLic aUToMatIC tranSmisSIon is emplOYeD in THE aBove-explainED HYbrId vehIclE, The worKing Oil pressure in the tRAnsmission mechAnisM OF thE auTOmatIc Transmission is SecUrED By a hydraUlIc pump driveN by the enGiNE. HoweVer, if tHe engiNe is stoPPEd WHile thE vehIclE is stoppeD so As TO wait unTiL tHE traffIc liGhT turns Green, tHE hydRAUlic pump is also stOpped SO That tHE neCessaRy Working OIl prEssure of thE transmissiOn mechAnisM cannOt be secUrEd.
In coNsiDeRation of thESe circumsTanceS, hybrid VeHiclEs hAving aN eleCTRic oiL pumP iN adDition
 In between each side lobe  is a regi on of  di min is hedor z ero transmissi o n, w hich is called a nullregio n1 50.T hu s, as  each s t at i o n c an  f orm  i t sown d ire ctional  beam, the  fi rs t device 110 ca n directly  co mmunicate wi ththe se co ndd evice  12 0 wit hout u t ilizin g the acc es s  point 105.
On e me thod  of beamforming i n  a communicationsystem  i n cl u d esapp lying diff er ent s t eeringv ec t o r s f o r the antenna  to generat e  aplural it y o f  quali ty in di c ato rs. As theante nna sweep s thro u gh a pl u ralityof sec tor s,qual i ty  d ata  i s  co l le cte d  to  determi ne  w hichsect o r p rodu ces  the  best  transmission  qu alit y . T he un derly ingas sumpt ions t o use  t his technique t o id entify th e b es t b ea m are that t hetwo  statio ns ares ync hr o n i ze d, and unfetteredco m m un icationbetwee n  t he two stat io nsexis t .  Unfo rtun a te ly, thes e situ a ti on s rarel yoccur.  W hen  be amfor m ingoccurs  between  twos tations in a w i reless area n e tw o r kt hatare  not synchr oniz e d, o ne o r  m ore secto rs of  t h ea ntenna sector sweep  m ay bemisse d. Accordingl y, the bea m f o rming pr oces s  m a y omit the hig hestquality se c tor when  esta blishing  the comm u n icationbea m b etw een t wo  communicatin g stat io ns. The seand oth ercha lle nge sof the pr ior artar ead dr ess ed by one or m or e e mb odi ments of the  pres entin ve n tio n. 1. F i el d of t he  I nven tio nThe p rese n t i nventio n relates  to a co nt ro l syste m for stoppin gand starti ng  th e engi n e  of a ve hicle, which is typical l y a hyb rid  vehi clehaving an  en gine a nda  motor  as dr iving  s our c e s.
2. D es cri pt ion of the R ela ted A rt 
Rec ently,in order to econom i zeon fuel for d riv ingt h eeng i ne ,  re du c e e x h aust gas genera ted by fue lc om bustion, a n d t he  like,hybridvehic l es have  been dev eloped, i nwhic h anengine and  a motor  which ca n  gene r at e pow er(calle da “ motor  gener a tor ”, he reinbe lo w) are  coup le d with t he power transmission m echani sm wh ich  is coupl edw ith  drivingwhee ls of theveh icl e. In  su c h a h ybri d  v ehi c le, ( i) w h ile the v e hi cle i srunning, th e d riv ing p owe r  is as sist ed using the moto r  generator acc ordi n g  to  ne e d, a nd  (ii) the powe r i np u t  via the  d riving whee ls durin gd ecele ration  is tr ansmitt e d  t o  the m otor  ge nerator,and  t h e motor  g en e ratorperf or ms reg enerat i on s o as to convert th e dec e l erati o n e nergy  i nto reg e nera ted energy  which is s toredin a  stor age bat te ry asele ct rical ener g y.
When a  hydr aulic a ut omat ictransm issi o n  is e mplo ye d i n the abo v e -e x pl ai n edhybr id ve hi cle,  the work i ng oil p res s ure inth e t r a nsmiss i on m echanism o f t he au t o matic tran s miss i on is se curedby a h ydrauli c  pu mp  driven  by t he engine . However ,  if  t he e ngine is  s topp ed  wh il e the vehicle i s stoppe d so ast o  waitunt i l th e  traff ic  light turns  gree n, the hyd r a uli c pumpi s a lso  st oppe d s o th a t the necessary workingoilpress u reof th e tra ns missionm echa nism can n ot be secured .
In considerat i ono f th ese ci rc umstances , h y bridvehi cle s ha vin g an e lect r ic o i lpump  in ad diti on 
 In_between each_side lobe is a_region of_diminished_or zero_transmission,_which is called_a null region_150. Thus, as each_station can form_its_own directional beam, the first device 110 can directly communicate with the second device_120_without utilizing_the_access_point 105.
One method of beamforming_in a communication system includes_applying different_steering vectors for the antenna to generate a_plurality_of quality indicators._As the antenna sweeps through a plurality of sectors,_quality data is collected to determine_which sector produces_the_best_transmission quality. The underlying_assumptions to use this technique to_identify the best beam are that_the two stations are synchronized, and unfettered_communication between the two stations exist._Unfortunately, these situations rarely occur._When beamforming_occurs between two stations in_a wireless area_network that_are not synchronized,_one or more sectors of the_antenna sector sweep_may be missed. Accordingly, the beamforming_process_may omit the_highest_quality_sector when_establishing the communication_beam_between two_communicating_stations. These and other challenges of_the_prior art are addressed by one or_more embodiments of the_present_invention. 1. Field of_the Invention
The present invention relates_to a control system for stopping_and starting_the engine_of a vehicle, which is typically a hybrid vehicle having an_engine and a motor as driving_sources.
2. Description of the_Related Art
Recently,_in_order to economize_on_fuel for_driving the engine, reduce exhaust gas generated_by fuel_combustion, and the like, hybrid vehicles_have been developed, in_which_an engine and a motor which_can generate power (called a “motor_generator”, hereinbelow) are coupled with_the_power_transmission mechanism which is coupled_with driving wheels of the vehicle._In such a_hybrid vehicle, (i) while the vehicle is_running,_the driving power is assisted using_the_motor generator according to need, and_(ii)_the_power input via the driving_wheels during deceleration is transmitted to_the motor generator, and the motor generator performs regeneration_so as to_convert the deceleration energy into_regenerated_energy_which is stored in a storage battery as electrical energy.
When_a hydraulic_automatic transmission is_employed in the above-explained hybrid vehicle, the working oil pressure_in the transmission mechanism of the automatic_transmission is secured by a hydraulic pump driven by the engine._However, if the engine is stopped while the_vehicle is stopped so as to wait_until the traffic light_turns_green, the hydraulic pump is also stopped_so_that_the_necessary working oil_pressure of the_transmission mechanism cannot_be secured.
In_consideration of these_circumstances, hybrid_vehicles having an_electric_oil pump in addition