Motorcycle Deceleration Control During Brake Transition
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Solution Overview
Problem
Existing safety systems for saddled vehicles, such as motorcycles, face challenges in maintaining consistent deceleration control when a rider transitions from deceleration to braking, leading to potential safety hazards due to excessive deceleration reduction.
Innovation Solution
A controller with a control section and determination section that initiates and terminates deceleration controls based on rider operations and surrounding environment information, ensuring consistent deceleration through first and second deceleration controls, and executing additional deceleration when necessary to prevent collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If deceleration control is terminated when the rider returns the operation unit to the reference state, then the control system responds quickly to rider input, but the deceleration may decrease excessively during the transition period, deteriorating safety
Solution Approach 1:
The control section executes a second deceleration control in advance during the period from termination of the first deceleration control to initiation of brake operation. This preliminary action ensures that deceleration is maintained at an appropriate level before the rider's brake operation takes effect, preventing excessive deceleration reduction and ensuring safety during the transition period.
Solution Approach 2:
The control section maintains continuous deceleration control by executing the second deceleration control during the transition period. This ensures that the deceleration action continues without interruption or excessive reduction, bridging the gap between the first deceleration control and the rider's brake operation, thereby maintaining safety throughout the entire process.
2Reliability
If the controller monitors surrounding environment information and executes second deceleration control during the transition period, then safety is improved by preventing excessive deceleration reduction, but the control system complexity increases
Solution Approach 1:
The control section is designed to perform multiple functions: it executes both the first deceleration control based on rider operation and the second deceleration control based on collision possibility determination. By making the control section multi-functional, the patent avoids adding separate dedicated systems while still achieving enhanced safety through comprehensive deceleration management.
Solution Approach 2:
The determination section continuously determines the possibility of causing a collision based on surrounding environment information and provides feedback to the control section. This feedback mechanism enables the control section to adjust the second deceleration control appropriately, ensuring safety while using an integrated control architecture rather than separate independent systems.
Data Source
AI summary
The present disclosure provides a controller and a control method that improve safety of saddled vehicles suitably.According to the controller and the control method, a controller maneuvers a saddled vehicle that includes a first operation unit configured to accept a brake operation by a rider. The controller has a control section (62) and a determination section (63). The control section (62) controls a deceleration of the saddled vehicle (100). The determination section (63) determines possibility of causing a collision of the saddled vehicle (100) based on a surrounding environment information of the saddled vehicle (100). The control section (62) initiates a first deceleration control, to control the deceleration, according to a first operation. The first operation is an operation in which the rider operates a second operation unit (2R) to change a state of the second operation unit (2R) from a reference state to a different state that is different from the reference state. The second operation unit (2R) is different from the first operation unit (11, 13). The control section (62) terminates the first deceleration control according to a second operation. The second operation is an operation in which the rider operates the second operation unit (2R) to return the state to the reference state during the first deceleration control. The control section (62) executes a second deceleration control, to control the deceleration, based on determination results of the determination section (63) about the possibility of causing the collision, the control section executes the second deceleration at least one point in a period from the termination of the first deceleration control to an initiation of operating the first operation unit (11, 13) by the rider.