Patent US4216093A successfully refreshed from Google Patents.
Patent EP0517224A2 successfully refreshed from Google Patents.
EP0517224A2
Expired / Lapsed
EP
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Muscle-operated vehicle
Assignee: Yamaha Motor Co Ltd
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Filing: 1992-06-04
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Granted: —
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Expires: 2012-06-04
Abstract
Abstract The present invention relates to a muscle-operated vehicle, especially bicycle, having a muscle-operated driving system (26-28), an auxiliary electrical power driving system (36-40) and a control means (42) for controlling the output of the electrical power driving system. More specifically, a vehicle driving condition detecting means is provided to detect an unpowered manual vehicle advancing or reversing push-walking drive movement, operating the electrical power driving system to power assist the advancing push-walking movement and/or to prevent a short circuit braking force from being generated through the electrical power driving system when the vehicle is manually moved rearwards.
Inventors
- 👤 Nozomu Takata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 10:36
CPC Classifications
B; B62; B62M; B62M6/00; B62M6/40; B62M6/45; B60; B60L; B60L15/00; B60L15/20; B60L15/2063; B62M6/55; B60L2250/00; B60L2250/22; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T10/72
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
91 words
Muscle-operated vehicle, especially bicycle, having a muscle-operated driving system, an auxiliary electrical power driving system and a control means for controlling the output of the electrical power driving system characterised in that a vehicle driving condition detecting means is provided to detect an unpowered manual vehicle advancing or reversing push-walking drive movement, operating the electrical power driving system (36) to power assist the advancing push-walking movement and/or to prevent a short circuit braking force from being generated through the electrical power driving system (36) when the vehicle is manually moved rearwards
Claim 2
Dependent Claim
37 words
Muscle-operated vehicle as claimed in claim 1 characterised in that the auxiliary electrical power driving system comprises a DC motor (36) generating a reverse voltage of reversed polarity when the travelling direction of the vehicle is reversed.
Claim 3
Dependent Claim
33 words
Muscle-operated vehicle as claimed in claim 2 characterised in that the DC motor (36) is provided in a motor circuit comprising a battery (44), a main switch (54) and the control means (42,42a,66).
Claim 4
Dependent Claim
52 words
Muscle-operated vehicle as claimed in claim 3 characterised in that the motor circuit comprises a diode (56) connected in parallel to a motor coil of the DC motor (36), said motor circuit comprising a brake release switch (60) arranged between a reverse connection of the diode (56) and the DC motor (36).
Claim 5
Dependent Claim
23 words
Muscle-operated vehicle as claimed in claim 4 characterised in that said brake release switch (60) is controlled by a reverse control circuit (62,62a).
Claim 6
Dependent Claim
31 words
Muscle-operated vehicle as claimed in claim 5 characterised in that said reverse control circuit (62) comprises a driving torque comparator (64), a self-holding circuit (66) and a vehicle speed comparator (68).
Claim 7
Dependent Claim
55 words
Muscle-operated vehicle as claimed in claims 5 or 6 characterised in that a delay circuit is provided comprising a timer (74) connected between the driving troque comparator (64) and the self-holding circuit (66) to control a contact (72) of a line which is adapted to input the driving torque (T) to the control means (42).
Claim 8
Dependent Claim
58 words
Muscle-operated vehicle as claimed in claim 5 characterised in that the reverse control circuit (62A) comprises a comparator (84) connected to the plus and minus poles of the DC motor (36) for detecting a reverse rotation of said motor (36), said comparator (84) actuates a switch (82) to open the brake release switch (60) of the motor circuit.
Claim 9
Dependent Claim
56 words
Muscle-operated vehicle as claimed in claim 1 characterised in that a push-walking detecting means is provided for detecting the condition of operating the vehicle by walking, pushing said vehicle, especially bicycle, by hand, triggering the control means (42a,42) to control the DC motor (36) to a certain push-walking speed which is slower than the walking speed.
Claim 10
Dependent Claim
63 words
Muscle-operated vehicle as claimed in claim 9 characterised in that the push-walking detecting means comprises a driving troque comparator (62), a vehicle speed comparator (68), a grip switch (70) and an AND circuit (72) to activate a push-walking control means (42a,42) of the motor circuit to energize the motor (36) in response to a control means activating output of the AND circuit (72).
Claim 11
Dependent Claim
30 words
Muscle-operated vehicle as claimed in claim 9 characterised in that a push-walking condition cancelling switch (74) is provided, operated in response to a braking condition of the vehicle being detected.
Claim 12
Dependent Claim
20 words
Muscle-operated vehicle as claimed in claim 9 characterised in that the push-walking detecting means comprises a manually operated switch (76,76a).
Claim 13
Dependent Claim
35 words
Muscle-operated vehicle as claimed in at least one of the preceding claims 9-12 characterised in that the push-walking detecting means comprises a timer (68a) in order to retard a push-walking operation of the motor (36).
Claim 14
Dependent Claim
29 words
Muscle-operated vehicle as claimed in claim 9 characterised in that the push-walking detecting means comprises a vehicle inclination sensor (80) to detect an uphill push-walking condition of the vehicle.
Claim 15
Dependent Claim
50 words
Muscle-operated vehicle as claimed in at least one of the preceding claims 1-14 characterised in that the muscle-operated driving system and the electrical power system are provided in parallel to each other operating a driving shaft (26) of a rear wheel drive of a bicycle via one-way clutches (30,38) respectively.
References Cited (Backward Citations)
No citation records indexed.
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