Europaisches Patentamt European Patent Office
Office europeen des brevets © Publication number: 0 3 9 0 0 8 8 A 3
EUROPEAN PATENT A P P L I C A T I O N © Application number: 90105845.3
@ Date of filing: 27.03.90
int. Ci.5; B60T 8/32, B60K 28/16, B60K 4 1 / 2 8
® Priority: 31.03.89 JP 83732/89 Aki-gun, Hiroshima-ken(JP)
Inventor: Tsuyama, Toshiaki, Mazda Motor
@ Date of publication of application: Corporation
03.10.90 Bulletin 90/40 No. 3-1 Shinchi, Fuchu-cho
Aki-gun, Hiroshima-ken(JP) © Designated Contracting States: Inventor: Onaka, Toru, Mazda Motor
DE FR GB Corporation
No. 3-1 Shinchi, Fuchu-cho © Date of deferred publication of the search report: Aki-gun, Hiroshima-ken(JP)
23.06.93 Bulletin 93/25 Inventor: Tsukahara, Yutaka, Mazda Motor
Corporation
No. 3-1 Shinchi, Fuchu-cho
© Applicant: Mazda Motor Corporation Aki-gun, Hiroshima-ken(JP)
No. 3-1, Shinchi Fuchu-cho Aki-gun Hiroshima-ken(JP)
0 Representative: Lohrentz, Franz, Dipl.-lng. et @ Inventor: Nobumoto, Kazutoshi, Mazda Motor al
Corporation Ferdinand-Maria-Strasse 12
No. 3-1 Shinchi, Fuchu-cho W-8130 Starnberg (DE)
© Slip control system for a vehicle.
© When a slip value of the driven wheel (1RL, trol. The slip control by application of the braking 1RR) of a vehicle on a road surface reaches a force to the driven wheel (1RL, 1RR) is inhibited predetermined value, the braking force is applied to when the vehicle speed reaches a high speed above the driven (1RL, 1RR) wheel by means of slip con- a predetermined vehicle speed.
Rank Xerox (UK) Business Services [-13. 6/3. 3. 1)
I ) iropean Patent
ffice UKUPt-AlN StAKLH K t r U K l
OCUMENTS COINS1UEKEU 1U Bfc K t n - V A n i
ategory itation ot document witn indication, wnere appropriate, of relevant passages claim PPLICATION 0"nt. CI. 5) »-A-0 128 583 ( KUbtK I BUbLH)
abstract; claims; figures 1,4 * page 2, line 1 - line 30 *
page 3, line 9 - line 24; page 7, ine 8 - line 29 *
P-A-0 301 558 (MAZDA) the whole document * P-A-0 180 096 (TOYOTA)
abstract; claims 1,6-9; figures 1-4; age 2, line 6 - page 9, line 3; page
, line 30 - page 11, line 3; page 13, ine 1 - page 15, line 5; page 18, line
- page 21, line 20 * B-A-2 020 382 (WABC0)
the whole document *
P-A-0 180 033 (ROBbKI tSUbLH) the whole document *
- / -
The prwnt oarch rppart hat hwn drawn up fnr -ill rhimr n< i i. I Date of comoletion ot , 3 -12 3-21 5-27 - ic ,25 9-21, 5-27 ,9-12 25 -8 60 K 28/16 60 K 41/28
SEARCHED ant. CI.5)
Flace ot searcn
THE HAGUE 27-11-1992 WESTLAND P G
X : particularly relevant if taken alone Y : particularly relevant if combined with another document of the same category
A : technological background O : non-written disclosure P : intermediate document
E : earlier patent document, but published on, or after the filing date D : document cited in the application L : document cited for other reasons
ropean patent ice
.AIMS INCUHHiNU r e c a
i present European patent application com^t .sou =i >»■■■= - »
r- j All claims fees have been paid within the prescribed time limit. The present Euroi Hrawn nnfnr all claims. claims tees nave own m«iu ni> »■= wn up for all claims.
ily part ot the claims tees navo woi ■• - ■
port has been drawn up for the first ten claims and tor those claims tor which claims lees have been paid, tmely claims:
, claims fees have been paid within the prescribed time limit. The present European search report has been awn up lor the first ten claims.
LACK OF UNITY Or liNVCMtmw
,e Search Division considers that the present European patent application does not comply with the requirement of unity of mention and relates to several inventions or groups of inventions.
imely:
ee s h e e t - a -
□ □
All tunner searcn rees nave uwn h«i«j - - - been drawn up for all claims.
Only part of the further search fees have been paid within the fixed time limit. The present European search report has been drawn up tor those parts of the European patent application which relate to the Inventions in respect of which search fees have been paid.
namely *.iaii*io.
[7| None ot the further search fees has been paid within the fixed time limit. The present European search report has been drawn up tor those parts of the European patent application which relate to the invention first mentioned in the claims,
European Patent
Office EUROPEAN SEARCH REPORT
Page 2
Application Number EP 90 10 5845 DOCUMENTS CONSIDERED TO BE RELEVANT
Category Citation of document with indication, where appropriate, of relevant passages Relevant to claim APPLICATION ant. CI. 5) CLASSIFICATION OF THE DE-A-3 419 716 (ROBERT BOSCH)
* the whole document * 25 1,9-12,
TECHNICAL FIELDS SEARCHED Ont. CI.5)
The present search report has been drawn up for all claims Place of search
THE HAGUE Date of completion of the search 27-11-1992 WESTLAND P G Examiner CATEGORY OF CITED DOCUMENTS
X : particularly relevant if taken alone Y : particularly relevant if combined with another document of the same category A : technological background O : non-written disclosure
P : intermediate document
T : theory or principle underlying the invention E : earlier patent document, but published on, or after the filing date D : document cited in the application L : document cited for other reasons
iuropean Patent
)ffice ■o-
[ LACK OF UNITY OF INVENTION
he Search Division considers that the present European patent application does not comply with the requirement of unity of wention and relates to several inventions or groups of inventions,
amely:
1. Claims 1 - 1 2 , 1 9 - 2 1 , 2 5 - 2 7 :
Method of t r a c t i o n c o n t r o l for a v e h i c l e 2. Claims 1 3 - 1 8 , 2 2 - 2 4 :
Engine t o r q u e r e d u c t i o n c o n t r o l means by use o f t h r o t t l e v a l v e
NON -UNITY a p o s t e r i o r i
The t e c h n i c a l c o n t e n t of claim 1 was found in t h e p r i o r a r t document EP-A- 0 128 583.
The t e c h n i c a l f e a t u r e s of those c l a i m s appended t o calim 1 which d i f f e r e n t i a t e the a p p l i c a t i o n from t h e p r i o r a r t document above are as f o l l o w s :
Claim 2 Claim 3 Claim 8 Claim 9 Claim 1,0 Claim 11 Claim 19 Claim 25 S h i f t c o n t r o l of a u t o m a t i c t r a n s m i s s i o n DITTO O p e r a t i o n of brake c o n t r o l c a u s e s no down s h i f t Torque a d j u s t i n g means
Feedback c o n t r o l of brake f o r c e a d j u s t i n g means Feedback c o n t r o l of brake and t o r q u e a d j u s t i n g means
C o n t r o l fo brake f o r c e a c h i e v e d via a n t i - l o c k s y s t e m
Slip d e t e c t i n g m e t h o d
C l e a r l y claim 2, or claim 3 (when taken in c o m r j i n a t i o n with claim 1) e x h i b i t s no t e c h n i c a l r e l a t i o n s h i p t o c l a i m s 8 - 1 1 , 1 9 , 2 5 .
A lack of u n i t y of i n v e n t i o n a p o s t e r i o r i must t h e r e f o r e e x i s t .
However, the document c i t d a g a i n s t c l a i m s l and i
(EP-A- 0 301 558) also c o n t a i n s the i n f o r m a t i o n c o n v e y e d in c l a i m s 4 - 1 2 .
S i m i l a r l y document EP-A- 0 180 096, found d u r i n g the c o u r s e of the s e a r c h and i n v o l v i n g no a d d i t i o n a l work, c o n t a i n s the t e c h n i c a l i n f o r m a t i o n conveyed in c l a i m s 1 9 - 2 1
( a n t i - l o c k c o n t r o l ) and in claims 25-27 ( s l i p / l o c k d e t e c t i o n ) The remaning c l a i m s , 13-18 and 22-24, a l l in a group o f
c l a i m s dependent: on claim 11, must t h e r e f o r e be c o n s i d e r e d as a second i n v e n t i o n . These claims c o n c e r n the c o n t r o l o f e n g i n e t o r q u e r e d u c t i o n .
0 iuropean Patent EP 90 10 5845 )ffice
ACK OF UNITY OF INVENTION
he Search Division considers that the present turopean patent application ooes natcumpy mm ui« .~t"" »">»■' ' - wention and relates to several inventions or groups of inventions,
amely:
'rom the above r e a s o n i n g , claims 13-18 ana z z - z i
