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US 5,318,355 AGranted
Brake system in electric vehicle
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsNobuyoshi Asanuma, Yasushi Aoki, Atsuo Ohno, Takeshi Ohba
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AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsNobuyoshi Asanuma, Yasushi Aoki, Atsuo Ohno, Takeshi Ohba
Estimating the term…
The switchover is mode from a regenerative braking-preference mode in which the braking force for follower and driving wheels are more than a theoretical braking force distribution characteristic for follower and driving wheels, to a usual mode in which a braking force distribution characteristic thereof corresponds to the theoretical braking force distribution characteristic, is carried along an equal braking force line which is the sum of the braking forces for the follower and driving wheels. Thus, the sum total of the braking forces over the entire vehicle is kept constant even if the distribution of the braking forces for the follower and driving wheels is varied and therefore, a smooth braking is possible without a degradation of the steering stability. In addition, the switchover in mode from the regenerative-preference mode to the usual mode is carried out when the time-differentiation value of a wheel speed of the follower wheel or the driving wheel exceeds a predetermined value. Thus, when the friction coefficient of a road surface is large so that a small locking tendency of a wheel may be produced during braking, the regenerative braking-preference mode can be selected, thereby increasing the effect of recovery of energy by the regenerative braking.
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element, and control means is provided for controlling switchover in mode from a regenerative braking-preference mode in which a regenerative braking force for said driving wheel is set to exceed a theoretical braking force distribution characteristic for the follower and driving wheels, to a usual mode of which a braking force distribution characteristic corresponds to said theoretical braking force distribution characteristic,
A brake system in an electric vehicle according to claim wherein the switchover in mode from the regenerative braking-preference mode to the usual mode by the control means is performed when a yaw rate of the vehicle is not less than a predetermined value.
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element, and control means is provided for controlling switchover in mode from a regenerative braking-preference mode in which a regenerative braking force for said driving wheel is set to exceed a theoretical braking force distribution characteristic for the follower and driving wheels, to a usual mode in which a braking force distribution characteristic corresponds to said theoretical braking force distribution characteristic,
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element, and control means is provided for controlling a switchover in mode from a regenerative braking-preference mode in which a regenerative braking force for the driving wheel is set to exceed a theoretical braking force distribution characteristic for the follower and driving wheels, to a usual mode of which a braking force distribution characteristic thereof corresponds to said theoretical braking force distribution characteristic,
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element, and control means is provided for controlling switchover in mode from a regenerative braking-preference mode in which a regenerative braking force for the driving wheel is set to exceed a theoretical braking force distribution characteristic for the follower and driving wheels, to a usual mode of which a braking force distribution characteristic corresponds to the theoretical braking force distribution characteristic,
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, and said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element,
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, and said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element,
A brake system in an electric vehicle, in which one or both of a hydraulic braking and a regenerative braking can be selected based on an operation of a brake operating element and a travelling condition of the vehicle, said brake system comprising
A brake system in an electric vehicle, in which one or both of a hydraulic braking and a regenerative braking can be selected based on an operation of a brake operating element and a travelling condition of the vehicle, said brake system comprising
A brake system in an electric vehicle, in which any one or both of a hydraulic braking and a regenerative braking can be selected based on an operation of a brake operating element and a travelling condition of the vehicle, said brake system comprising
A brake system in an electric vehicle having a follower wheel and a driving wheel, wherein said follower wheel is capable of being hydraulically braked by the operation of a brake operating element, said driving wheel is connected to and driven by a motor using a battery as an energy source and is capable of being hydraulically and regeneratively braked by the operation of said brake operating element, and control means is provided for controlling switchover in mode among a plurality of control modes having different ratios between a regenerative braking force for the driving wheel and a hydraulic braking forces for the follower and driving wheels,
Apparatus for braking an electric vehicle, comprising
Apparatus for braking an electric vehicle, said apparatus comprising
Dependencies are inferred from the claim text.