Hydraulic Pressure Control Unit Using Control Terminals for Wakeup
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Solution Overview
Problem
Existing hydraulic pressure control units for vehicles face challenges in reducing size due to the presence of a dedicated wakeup terminal, which hampers flexibility in layout and mounting, especially in straddle-type vehicles, and also contributes to increased size in four-wheeled vehicles due to engine room constraints.
Innovation Solution
The hydraulic pressure control unit eliminates the need for a wakeup terminal by using existing control signal terminals to switch between sleep and operation modes, allowing for a smaller connector size and overall unit size reduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated wakeup terminal is provided to switch between sleep mode and operation mode, then the control unit can reliably switch modes, but the connector size increases and layout flexibility is reduced
Solution Approach 1:
The patent applies universality by enabling existing control signal terminals to serve dual functions: they既可以 transmit control signals during operation mode,又可以 serve as wakeup signals during sleep mode. This eliminates the need for a dedicated wakeup terminal, reducing connector size while maintaining reliable mode switching functionality.
2Reliability
If a dedicated wakeup terminal is provided for mode switching, then the control unit can be reliably activated, but the layout flexibility and mounting flexibility are reduced
Solution Approach 1:
The patent enables existing control signal terminals to perform multiple functions - serving both as control signal interfaces and wakeup signal receivers. This multi-functionality eliminates the need for additional dedicated terminals, thereby improving layout flexibility and mounting adaptability while ensuring reliable activation.
3Volume of moving object
If existing control signal terminals are used for wakeup signals, then the connector size is reduced, but the control signal transmission may be affected
Solution Approach 1:
The patent employs periodic action by using different signal patterns or timing characteristics to distinguish between wakeup signals and control signals. The control unit can reliably differentiate between these signal types through their temporal or pattern characteristics, ensuring that control signal transmission is not affected while still using the same physical terminals.
Data Source
AI summary
The purpose of the present invention is to achieve, in a hydraulic pressure control unit that controls the pressure of brake fluid of a braking device configured to brake a vehicle, the hydraulic pressure control unit capable of reducing its size as compared to an existing hydraulic pressure control unit.A hydraulic pressure control unit according to the present invention is a hydraulic pressure control unit that controls the pressure of brake fluid of a braking device configured to brake a vehicle, the hydraulic pressure control unit including: a control device that is configured to control the pressure; and a connector that is connected to an in-vehicle network, in which the control device includes a mode switching part that is configured to switch a mode between an operation mode and a sleep mode, the operation mode is a mode in which control on the pressure is executed, the sleep mode is a mode in which power consumption is suppressed as compared to that in the operation mode, the connector includes a terminal that accepts input of a control signal used for the control on the pressure, and the mode switching part has such a configuration as to switch the mode from the sleep mode to the operation mode once a signal is input to the terminal during the sleep mode.